"bicuspid" in the noun sense
1. premolar, bicuspid
a tooth having two cusps or points located between the incisors and the molars
"bicuspid" in the adjective sense
1. bicuspid, bicuspidate
having two cusps or points (especially a molar tooth
"bicuspid teeth"
"bicuspid leaves"
Source: WordNet® (An amazing lexical database of English)
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