Antheridium: Definition and part of speech

Antheridium

  1. n. The male reproductive apparatus in the lower, consisting of a cell or other cavity in which spermatozoids are produced; — called also spermary.

The word meanings were obtained from OPTED(The Online Plain Text English Dictionary), which is based on “The Project Gutenberg Etext of Webster’s Unabridged Dictionary” which is in turn based on the 1913 US Webster’s Unabridged Dictionary (See Project Gutenburg), as a text file.