Debuccalization is a sound change in which an oral consonant loses its original place of articulation and moves it to the glottis (usually , , or ). The pronunciation of a consonant as is sometimes called aspiration but in phonetics, aspiration is the burst of air accompanying a stop. The word comes from Latin bucca, meaning "cheek".

Debuccalization is a sound change in which an oral consonant loses its original place of articulation and moves it to the glottis (usually , , or ). The pronunciation of a consonant as is sometimes called aspiration but in phonetics, aspiration is the burst of air accompanying a stop. The word comes from Latin bucca, meaning "cheek".