Gemination

In phonetics, gemination or consonant elongation happens when a spoken consonant is pronounced for an audibly longer period of time than a short consonant. Gemination is distinct from stress and may appear independently of it. Gemination literally means "twinning", and is from the same Latin root as "Gemini".

Consonant length is distinctive in some languages, for instance Arabic, Berber, Maltese, Catalan, Danish, Estonian, Finnish, Classical Hebrew, Hungarian, Italian, Japanese, Latin, Malayalam, Tamil, and Telugu. Most languages (including English) do not have distinctive long consonants. Vowel length is distinctive in more languages than consonant length, although several languages feature both independently (as in Arabic, Japanese, Finnish, and Estonian), or have interdependent vowel and consonant length (as in Norwegian and Swedish).

Lengthened fricatives, nasals, laterals, approximants, and trills are simply prolonged. In lengthened stops, the obstruction of the airway is prolonged, delaying release. That is, the "hold" is lengthened. Long consonants are usually around one and a half or two times as long as short consonants, depending on the language.

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