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Vinony

granule

noun

  1. convection cell in the photosphere of the Sun
L253963 on Wikidata ↗

Wiktionary

Pronunciation: /ˈɡɹæn.juːl/ / /ˈɡɹæn.jul/ / /ˈɡɹæn.jəl/

noun

Etymology: Borrowed from French granule or directly from Late Latin grānulum, diminutive of Latin grānum (“grain”); for more, see grain. By surface analysis, grain + -ule.

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