The Collaborative International Dictionary of English. 2000.
Polyacra — Polyacron Pol y*a cron, n.; pl. {Polyacra}, E. {Polyacrons}. [NL., fr. Gr. poly s many + a kron summit.] (Geom.) A solid having many summits or angular points; a polyhedron. [1913 Webster] … The Collaborative International Dictionary of English
Polyacron — Pol y*a cron, n.; pl. {Polyacra}, E. {Polyacrons}. [NL., fr. Gr. poly s many + a kron summit.] (Geom.) A solid having many summits or angular points; a polyhedron. [1913 Webster] … The Collaborative International Dictionary of English
