名词 cuspid:

1. one of the four pointed conical teeth (two in each jaw) located between the incisors and the premolars

cuspn.尖头；尖端；交点；[天]月角cusp restoration牙尖修复cuspidal tangent尖点切线Cuspidaria mitisn.温和杓蛤cusped-geometry会切几何cusp interference[医] 尖牙阻碍Cuspidaria caducan.波纹杓蛤cusp of first kind第一类尖点Cuspidaria nobilisn.华贵杓蛤Cuspidaria okezokon.短喙杓蛤cusp configuration会切位形