'Pentacra' definitions:

Definition of 'Pentacra'

From: GCIDE
  • Pentacron \Pen*ta"cron\, n.; pl. L. Pentacra, E. Pentacrons. [NL., fr. Gr. pe`nte five + 'a`kron a summit.] (Geom.) A solid having five summits or angular points. [1913 Webster]