GNU Collaborative International Dictionary of English

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Found 2 definitions

1.       
   ‖Bacillariæ , n. pl. [NL., fr. L. bacillum, dim. of baculum stick.] (Biol.) See Diatom.
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2.       
   Diatom , n. [Gr. διάτομος cut in two. See Diatomous.]
   (Bot.) One of the Diatomaceæ, a family of minute unicellular Algæ having a siliceous covering of great delicacy, each individual multiplying by spontaneous division. By some authors diatoms are called Bacillariæ, but this word is not in general use.
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   A particle or atom endowed with the vital principle.
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   The individual is nothing. He is no more than the diatom, the bit of protoplasm.
   Mrs. E. Lynn Linton.
   
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