Published online by Cambridge University Press: 06 February 2009
From relevant surveys (Greenberg 1970, Maddieson 1984: 98–122) it appears that the only sound-types with glottalic suction initiation which are reliably attested in the sound systems of languages are oral-plus-velic stops with plain release, whether these be the common voiced types, or the rare voiceless types (see e.g. Pinkerton 1986) which received official recognition and symbols only at the 1989 IPA convention. Real-language members of the class ‘implosive’ thus share articulatory as well as initiatory properties, making the ‘-plosive’ part of the term particularly apt.