from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. any flowerless plant whose growth takes place at the tip of the main stem, especially the cryptogam ferns
from the GNU version of the Collaborative International Dictionary of English
- n. A plant of the highest class of cryptogams, including the ferns, etc. See cryptogamia.
from The Century Dictionary and Cyclopedia
- n. An aerogenous plant.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. any flowerless plant such as a fern (pteridophyte) or moss (bryophyte) in which growth occurs only at the tip of the main stem
From acro- + -gen. (Wiktionary)
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