Definitions

from The Century Dictionary.

  • noun An aerogenous plant.

from the GNU version of the Collaborative International Dictionary of English.

  • noun (Bot.) A plant of the highest class of cryptogams, including the ferns, etc. See cryptogamia.
  • noun (Geol.) the age of coal plants, or the carboniferous era.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun biology any flowerless plant whose growth takes place at the tip of the main stem, especially the cryptogam ferns

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • noun any flowerless plant such as a fern (pteridophyte) or moss (bryophyte) in which growth occurs only at the tip of the main stem

Etymologies

from Wiktionary, Creative Commons Attribution/Share-Alike License

From acro- + -gen.

Examples

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