'Bacillariae' definitions:

Definition of 'Bacillariae'

From: GCIDE
  • Diatom \Di"a*tom\ (d[imac]`[.a]*t[o^]m), n. [Gr. dia`tomos cut in two. See Diatomous.]
  • 1. (Bot.) One of the Diatomace[ae], a family of minute unicellular Alg[ae] having a siliceous covering of great delicacy, each individual multiplying by spontaneous division. By some authors diatoms are called Bacillari[ae], but this word is not in general use. [1913 Webster]
  • 2. A particle or atom endowed with the vital principle. [1913 Webster]
  • The individual is nothing. He is no more than the diatom, the bit of protoplasm. --Mrs. E. Lynn Linton. [1913 Webster]

Definition of 'Bacillariae'

From: GCIDE
  • Bacillariae \Bac"il*la`ri*[ae]\, n. pl. [NL., fr. L. bacillum, dim. of baculum stick.] (Biol.) See Diatom. [1913 Webster]