'Cuspidal' definitions:

Definition of 'cuspidal'

From: WordNet
adjective
Having cusps or points [syn: cuspate, cuspated, cusped, cuspidal, cuspidate, cuspidated]

Definition of 'Cuspidal'

From: GCIDE
  • Cuspidal \Cus"pi*dal\ (-p?-dal), a. [From L. cuspis, cuspidis. See Cusp.] Ending in a point. [1913 Webster]