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Meaning of nemathecium

nem•a•the•ci•um

Pronunciation: (nem"u-thē'shē-um, -sē-um), [key]
— pl. -ci•a
  1. a wartlike protuberance on the thallus of certain red algae, containing tetraspores, antheridia, or cystocarps.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.