Definitions

from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun A small grain or pellet; a particle.
  • noun Geology A rock or mineral fragment larger than a sand grain and smaller than a pebble, between 2 and 4 millimeters in diameter.
  • noun Astronomy One of the small, transient, luminous markings in the photosphere of the sun.
  • noun Biology A cellular or cytoplasmic particle, especially one that stains readily.

from The Century Dictionary.

  • noun A little grain; a fine particle.

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

  • noun A little grain; a small particle; a pellet.

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

  • noun A tiny grain, a small particle.
  • noun biology A small structure in a cell.
  • noun geology A particle from 2 to 4 mm in diameter, following the Wentworth scale
  • noun astronomy a small mark in the photosphere of the sun caused by convection currents. See also Wikipedia:Granule (solar physics).

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

  • noun a tiny grain

Etymologies

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

[Late Latin grānulum, diminutive of Latin grānum, grain; see gr̥ə-no- in Indo-European roots.]

from Wiktionary, Creative Commons Attribution/Share-Alike License

From Late Latin granulum, diminutive of Latin granum ("grain"); see grain.

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