| 释义 |
cuspidal, a.|ˈkʌspɪdəl|
[f. L. cuspid-em + -al1.]
†1. Belonging to the apex (of a cone). Obs.
1647H. More Song of Soul Notes 160/1 The cuspidall particles of the Cone.
2. Geom. Having, relating to, or of the nature of, a cusp: see cusp 4.
1874Salmon Geom. three Dimens. §305 The locus of points where two consecutive generators of a developable intersect is a curve..which is called the cuspidal edge of that developable. 1879― Higher Plane Curves §209 Cuspidal cubics.
3. Of teeth: = cuspidate.
1867Bushnell Mor. Uses Dark Th. 274 Cuspidal teeth. |