Main
Glossary of engineering
Glossary of engineering

This glossary of engineering terms is a broad overview of the major concepts of engineering. Please see the bottom of the page for glossaries of specific fields of engineering.
 Absolute electrode potential –
 Absolute motion –
 Absolute pressure –
 Absolute zero –
 Absorbance –
 AC power –
 Acceleration – rate at which the velocity of a body changes with time, and the direction in which that change is acting.
 Acid –
 Acidbase reaction –
 Acid strength –
 Acoustics –
 Activated sludge –
 Activated sludge model –
 Active transport –
 Actuator – a motor that translates control signals into mechanical movement.
 Acute angle –
 Adenosine triphosphate –
 Adhesion –
 Adiabatic process –
 Adiabatic wall –
 Aerobic digestion –
 Aerodynamics –
 Aerospace engineering –
 Afocal system –
 Agricultural engineering –
 Albedo –
 Algae –
 Algebra –
 Algorithm –
 Alkane –
 Alkene –
 Alkyne –
 Alloy –
 Alpha particle –
 Alternating current –
 Alternative hypothesis –
 Ammeter – an instrument that is used to measure current.
 Amino acid –
 Amorphous solid –
 Ampere – amp, a unit that describes the rate of flow of electricity (current).
 Amphoterism –
 Amplifier –
 Amplitude –
 Anaerobic digestion –
 Angular acceleration –
 Angular momentum –
 Angular velocity –
 Anion –
 Annealing (metallurgy) –
 Annihilation –
 Anode –
 ANSI – American National Standards Institute.
 Antigravity –
 Antimatter –
 Antineutron –
 Antiparticle –
 Antiproton –
 Applied engineering –
 Arc length –
 Archimedes' principle –
 Area moment of inertia –
 Arithmetic mean –
 Arithmetic sequence –
 Aromatic hydrocarbon –
 Arrhenius equation –
 Artificial intelligence – the intelligence of machines and the branch of computer science that aims to create it.
 Assembly language –
 Atom –
 Atomic mass –
 Atomic number –
 Atomic packing factor –
 Atomic physics –
 Atomic structure –
 Audio frequency –
 Austenitization –
 Automation –
 Automaton – an early selfoperating robot, performing exactly the same actions, over and over.
 Autonomous vehicle – a vehicle equipped with an autopilot system, which is capable of driving from one point to another without input from a human operator.
 Avogadro's number –
 Azimuthal quantum number –
 Bacteria –
 Balance sheet –
 Barometer –
 Baryon –
 Battery – electrochemical cells that transform chemical energy into electricity.
 Base –
 Baud –
 Beam –
 Beer–Lambert law –
 Belt –
 Belt friction –
 Bending –
 Benefit–cost analysis –
 Bending moment –
 Bernoulli differential equation –
 Bernoulli's equation –
 Bernoulli's principle –
 Beta particle –
 Binomial random variable –
 Biocatalysis –
 Biochemistry –
 Biology –
 Biomedical engineering –
 Biomimetic –
 Bionics –
 Biophysics –
 Biot number –
 Block and tackle –
 Body force –
 Boiler –
 Boiler (power generation) –
 Boiling point –
 Boilingpoint elevation –
 Boltzmann constant –
 Boson –
 Boyle's law –
 Bravais lattice –
 Brayton cycle –
 Breakeven analysis –
 Brewster's angle –
 Brittle –
 Bromide –
 Brønsted–Lowry acid–base theory –
 Brownian motion –
 Buckingham π theorem –
 Buffer solution –
 Bulk modulus –
 Buoyancy –
 Calculus –
 Capacitance –
 Capacitive reactance –
 Capillarity –
 Carbonate –
 Carnot cycle –
 Cartesian coordinates –
 Casting –
 Cathode –
 Cathode ray –
 Cell membrane –
 Cell nucleus –
 Cell theory –
 Center of gravity –
 Center of mass –
 Center of pressure –
 Central force motion –
 Central limit theorem –
 Central processing unit –
 Centripetal force –
 Centroid –
 Centrosome –
 Chain reaction –
 Change of base rule –
 Charles's law –
 Chemical bond –
 Chemical compound –
 Chemical equilibrium –
 Chemical kinetics –
 Chemical reaction –
 Chemistry –
 Chloride –
 Chloroplast –
 Chromate –
 Chromosome –
 Circle –
 Circular motion –
 Civil engineering –
 Clausius–Clapeyron relation –
 Clausius inequality –
 Clausius theorem –
 Coefficient of performance –
 Coefficient of variation –
 Coherence –
 Cohesion –
 Combustion –
 Compensation –
 Compiler – a computer program that translates a highlevel language into machine language.
 Compressive strength –
 Computational fluid dynamics –
 Computer –
 Computeraided design –
 Computeraided engineering –
 Computeraided manufacturing –
 Computer engineering –
 Computer science –
 Concave lens –
 Condensed matter physics –
 Confidence interval –
 Conjugate acid –
 Conjugate base –
 Continuum mechanics –
 Control systems engineering –
 Convex lens –
 Corrosion –
 Cosmic rays –
 Coulomb –
 Coulomb's law –
 Covalent bond –
 Crookes tube –
 Cryogenics –
 Crystallization –
 Crystallography –
 Curvilinear motion –
 Cyclotron –
 Dalton's law –
 Damped vibration –
 Darcy–Weisbach equation –
 DC motor –
 Decibel –
 Definite integral –
 Deflection –
 Deformation (engineering) –
 Deformation (mechanics) –
 Degrees of freedom – the extent to which a robot can move itself.
 Delta robot – a tripod linkage, used to construct fastacting manipulators with a wide range of movement.
 Deltawye transformer –
 Density –
 Derivative –
 Design engineering –
 Dew point –
 Differential pulley –
 Diffusion –
 Dispersion –
 Displacement (fluid) –
 Displacement (vector) –
 Distance –
 Doppler effect –
 Drag –
 Ductility –
 Dynamics –
 Dyne –
 Economics –
 Elastic modulus –
 Elasticity –
 Electric charge –
 Electric circuit –
 Electric current –
 Electric displacement field –
 Electric generator –
 Electric field –
 Electric field gradient –
 Electric motor –
 Electric potential –
 Electrical potential energy –
 Electric power –
 Electrical and electronics engineering –
 Electrical conductor –
 Electrical insulator –
 Electrical network –
 Electrical resistance –
 Electricity –
 Electrodynamics –
 Electromagnet –
 Electromagnetic field –
 Electromagnetic radiation –
 Electromechanics –
 Electron –
 Electronvolt –
 Electron pair –
 Electronegativity –
 Electronics –
 Endothermic –
 Energy –
 Engine –
 Engineering –
 Engineering economics –
 Engineering ethics –
 Environmental engineering –
 Engineering physics –
 Enzyme –
 Escape velocity –
 Estimator –
 EulerBernoulli beam equation –
 Exothermic –
 Falling bodies –
 Farad –
 Faraday –
 Farad –
 Faraday constant –
 Fermat's principle –
 Fick's laws of diffusion –
 Finite element method –
 FIRST, or For Inspiration and Recognition of Science and Technology – is an organization founded by inventor Dean Kamen in 1989 in order to develop ways to inspire students in engineering and technology fields.
 Fission –
 Fluid –
 Fluid dynamics –
 Fluid mechanics –
 Fluid physics –
 Fluid statics –
 Flywheel –
 Focus –
 Footpound –
 Fracture toughness –
 Fraunhofer lines –
 Free fall –
 Frequency modulation –
 Freezing point –
 Friction –
 Function –
 Fundamental frequency –
 Fundamental interaction –
 Fundamental theorem of calculus –
 Fundamentals of Engineering Examination –
 Fusion –
 Galvanic cell –
 Gamma rays –
 Gas –
 Geiger counter –
 General relativity –
 Geometric mean –
 Geometry –
 Geophysics –
 Geotechnical engineering –
 Gluon –
 Graham's law of diffusion –
 Gravitation –
 Gravitational constant –
 Gravitational energy –
 Gravitational field –
 Gravitational potential –
 Gravitational wave –
 Gravity –
 Ground state –
 Hadron –
 Halflife –
 Haptic – tactile feedback technology using the operator's sense of touch. Also sometimes applied to robot manipulators with their own touch sensitivity.
 Hardness –
 Harmonic mean –
 Heat –
 Heat transfer –
 Helmholtz free energy –
 Henderson–Hasselbalch equation –
 Henry's law –
 Hertz –
 Hexapod (platform) – a movable platform using six linear actuators. Often used in flight simulators they also have applications as a robotic manipulator.
 Hexapod (walker) – a sixlegged walking robot, using a simple insectlike locomotion.
 Hoist –
 Horsepower –
 Huygens–Fresnel principle –
 Hydraulics – the control of mechanical force and movement, generated by the application of liquid under pressure.
 Hydrocarbon –
 Ice point –
 Ideal gas –
 Ideal gas constant –
 Ideal gas law –
 Indefinite integral –
 Identity –
 Inertia –
 Infrasound –
 Integral –
 Integral transform –
 International System of Units –
 Interval estimation –
 Ion –
 Ionic bond –
 Ionization –
 Impedance – is the measure of the opposition that a circuit presents to the passage of a current when a voltage is applied.
 Inclined plane –
 Industrial engineering –
 Inorganic chemistry –
 Isotope –
 'Joule –
 Kalman filter – a mathematical technique to estimate the value of a sensor measurement, from a series of intermittent and noisy values.
 Kelvin –
 Kinematics –
 Kirchhoff's circuit laws –
 Kirchhoff's equations –
 Laminar flow –
 Laplace transform –
 LC circuit –
 Le Chatelier's principle –
 Lenz's law –
 Lepton –
 Lever –
 L'Hôpital's rule –
 Light –
 Linear actuator – a form of motor that generates a linear movement directly.
 Linear algebra –
 Linear elasticity –
 Liquid –
 Logarithm –
 Logarithmic identities –
 Lumped element model –
 Mach number –
 Machine –
 Machine code –
 Machine element –
 Machine learning –
 Maclaurin series –
 Magnetic field –
 Magnetism –
 Manufacturing engineering –
 Mass balance –
 Mass density –
 Mass moment of inertia –
 Mass number –
 Mass spectrometry –
 Material properties –
 Materials science –
 Mathematical optimization –
 Mathematical physics –
 Mathematics –
 Matrix –
 Matter –
 Maxwell's equations –
 Mean –
 Measures of central tendency –
 Mechanical advantage –
 Mechanical engineering –
 Mechanical filter –
 Mechanical wave –
 Mechanics –
 Mechanism –
 Median –
 Melting –
 Melting point –
 Meson –
 Metal alloy –
 Metallic bond –
 Midrange –
 Midhinge –
 Mining engineering –
 Miller indices –
 Mobile robot –
 Mode –
 Modulus of elasticity –
 Molality –
 Molar concentration –
 Molar absorptivity –
 Molar mass –
 Molarity –
 Molding –
 Molecule –
 Molecular physics –
 Moment of inertia –
 Multibody system –
 Multidisciplinary design optimization –
 Muon –
 Nanoengineering –
 Nanotechnology –
 Navier–Stokes equations –
 Neutrino –
 Newtonian fluid –
 nth root –
 Nuclear binding energy –
 Nuclear engineering –
 Nuclear physics –
 Nuclear potential energy –
 Nuclear power –
 Ohm –
 Ohm's law –
 Optics –
 Organic chemistry –
 Osmosis –
 Parallel circuit –
 Parity (mathematics) –
 Parity (physics) –
 Paraffin –
 Particle accelerator –
 Particle displacement –
 Particle physics –
 Pascal's Law –
 Pendulum –
 Petroleum engineering –
 pH –
 Phase (matter) –
 Phase (waves) –
 Phase equilibrium –
 Photon –
 Physical chemistry –
 Physical quantity –
 Physics –
 Planck constant –
 Plasma physics –
 Plasticity –
 Pneumatics – the control of mechanical force and movement, generated by the application of compressed gas.
 Point estimation –
 Polyphase system –
 Power (electric) –
 Power (physics) –
 Power factor –
 Pressure –
 Probability –
 Probability distribution –
 Probability theory –
 Psi particle –
 Pulley –
 Regelation –
 Relative density –
 Relative velocity –
 Reliability engineering –
 Resistivity –
 Reynolds number –
 Rheology –
 Rigid body –
 Robonaut – a development project conducted by NASA to create humanoid robots capable of using space tools and working in similar environments to suited astronauts.
 Robotics –
 Rootmeansquare –
 Rootmeansquare speed –
 Rotational energy –
 Rotational speed –
 Sanitary engineering –
 Saturation (chemistry) –
 Saturated compound –
 Scalar (mathematics) –
 Scalar (physics) –
 Scalar multiplication –
 Screw –
 Series circuit –
 Servo – a motor that moves to and maintains a set position under command, rather than continuously moving.
 Servomechanism – an automatic device that uses errorsensing negative feedback to correct the performance of a mechanism.
 Shadow matter –
 Shear strength –
 Shear stress –
 Shortwave radiation –
 SI units –
 Signal processing –
 Simple machine –
 Siphon –
 Solid mechanics –
 Solidstate physics –
 Solid solution strengthening –
 Solubility –
 Sound –
 Special relativity –
 Specific heat –
 Specific gravity –
 Specific volume –
 Specific weight –
 Spontaneous combustion –
 State of matter –
 Statics –
 Statistics –
 Stefan–Boltzmann law –
 Stewart platform – a movable platform using six linear actuators, hence also known as a Hexapod.
 Stiffness –
 Stoichiometry –
 Strain –
 Strain hardening –
 Strength of materials –
 Stress –
 Stressstrain analysis –
 Stressstrain curve –
 Structural analysis –
 Structural load –
 Sublimation –
 Subsumption architecture – a robot architecture that uses a modular, bottomup design beginning with the least complex behavioral tasks.
 Surface tension –
 Superconductor –
 Superhard material –
 Surgical robot – a remote manipulator used for keyhole surgery
 Technical standard –
 Temperature –
 Tensile force –
 Tensile modulus –
 Tensile strength –
 Tensile testing –
 Tension member –
 Thermal conduction –
 Thermal equilibrium –
 Thermal radiation –
 Thermodynamics –
 Theory of relativity –
 Thévenin's theorem –
 Threephase –
 Torque –
 Torsional vibration –
 Toughness –
 Trajectory –
 Transducer –
 Trigonometric functions –
 Trigonometry –
 Trimean –
 Triple point –
 Trouton's rule –
 Truncated mean –
 Truss –
 Turbine –
 Turbomachinery –
 Turbulence –
 Ultimate tensile strength –
 Uncertainty principle –
 Unicode –
 Unit vector –
 Unsaturated compound –
 Utility frequency –
 Vacuole –
 Vacuum –
 Valence –
 Valence band –
 Valence bond theory –
 Valence electron –
 Valence shell –
 Valve –
 van der Waals equation –
 van der Waals force –
 van 't Hoff equation –
 van 't Hoff factor –
 Variable capacitor –
 Variable resistor –
 Vector space –
 Venturi effect –
 Vibration –
 Viscoelasticity –
 Viscosity –
 Voltampere –
 Voltampere reactive –
 Volta potential –
 Voltage –
 Volumetric flow rate –
 von Mises yield criterion –
 Watt –
 Wave –
 Wavelength –
 Wedge –
 Weighted mean –
 Wetbulb temperature –
 Wheel and axle –
 Winsorized mean –
 Ycoordinate –
 Yield –
 Young's modulus –
 Engineering
 National Council of Examiners for Engineering and Surveying
 Fundamentals of Engineering Examination
 Principles and Practice of Engineering Examination
 Graduate Aptitude Test in Engineering
 Glossary of aerospace engineering
 Glossary of civil engineering
 Glossary of electrical and electronics engineering
 Glossary of mechanical engineering
 Glossary of structural engineering
 Glossary of architecture
 Glossary of areas of mathematics
 Glossary of artificial intelligence
 Glossary of astronomy
 Glossary of biology
 Glossary of calculus
 Glossary of chemistry
 Glossary of ecology
 Glossary of economics
 Glossary of physics
 Glossary of probability and statistics

What Else?
Glossary of engineering