资料来源 : Webster's Revised Unabridged Dictionary (1913)

Cusp \Cusp\, v. t. [imp. & p. p. {Cusped} (k?spt); p. pr. & vb.
   n. {Cusping}.]
   To furnish with a cusp or cusps.

资料来源 : WordNet®

cusped
     adj : having cusps or points [syn: {cuspate}, {cuspated}, {cuspidal},
            {cuspidate}, {cuspidated}]