Pentacron

1 definition found

From The Collaborative International Dictionary of English v.0.48 [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]