'Quinary system' definitions:

Definition of 'Quinary system'

From: GCIDE
  • Quinary \Qui"na*ry\, a. [L. quinarius, from quini five each, akin to quinque five: cf. F. quinaire. See Five.] Consisting of five; arranged by fives. --Boyle. [1913 Webster]
  • Quinary system (Zool.), a fanciful classification based on the hypothesis that each group contains five types. [1913 Webster]