Definitions

from The Century Dictionary.

  • noun In botany: The aperture through the outer integument of an ovule which, together with the endostome, completes the foramen.
  • noun The outer peristome of mosses.

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

  • noun (Bot.) The small aperture or foremen in the outer coat of the ovule of a plant.

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

  • noun botany The small aperture or foramen in the outer coat of the ovule of a plant.

Etymologies

from Wiktionary, Creative Commons Attribution/Share-Alike License

exo- + Ancient Greek mouth.

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Examples

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