Definitions

from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. The fine powderlike material consisting of pollen grains that is produced by the anthers of seed plants.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A fine granular substance produced in flowers. Collective term for pollen grains or microspores produced in the anthers of flowering plants.

from the GNU version of the Collaborative International Dictionary of English

  • n. Fine bran or flour.
  • n. The fecundating dustlike cells of the anthers of flowers. See Flower, and Illust. of Filament.

from The Century Dictionary and Cyclopedia

  • n. A fine yellowish dust or powder produced in the anther of a flower (whence it is discharged when mature), which when magnified is found to consist of separate grains of definite size and shape; the male or fecundating element in flowering plants: the homologue of the microspore in cryptogams.
  • To cover or dust with pollen; supply with pollen. Tennyson, Voyage of maeldune.

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

  • n. the fine spores that contain male gametes and that are borne by an anther in a flowering plant

Etymologies

Latin, fine flour.
(American Heritage® Dictionary of the English Language, Fourth Edition)
From Latin pollen ("fine flour"), used by Linnaeus to describe the substance produced in flowers. (Wiktionary)

Examples

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