granule

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granule,

in astronomy: see photospherephotosphere,
luminous, apparently opaque layer of gases that forms the visible surface of the sun or any other star. The photosphere lies between the dense interior gases and the more attenuated gases of the chromosphere.
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granule

[′gran·yül]
(astronomy)
A convective cell in the solar photosphere, about 600 miles (1000 kilometers) in diameter.
(geology)
A somewhat rounded rock fragment ranging in diameter from 2 to 4 millimeters; larger than a coarse sand grain and smaller than a pebble.

granule

Geology a single rock fragment in gravel, smaller than a pebble but larger than a sand grain
References in periodicals archive ?
Peritoneal mast cells were easily identified by the presence of a cytoplasm dominated by distinctive secretory granules which stain metachromatically (Fig.
Proteoglycan 1, secretory granule (PRG1), an early response gene regulated by P53 and NF-[kappa]B (Schafer et al.
Electron density of the secretory granule was low, and the internal space of the secretory granule was filled with fine granular substances.
The secretory granules were always in the basal cytoplasm.
28] Anderson at al detected that in DM induced rats macroscopic salivary glands, a great amounts of clustered of lipid droplets especially in serous acinus and reported that it could be caused by intake of lipid into the cells for using as a resource of energy or reduction in secretory granules or in plasma membrane materials.
The NS cells are the largest cells, and their cytoplasm contains densely packed and strongly stained secretory granules.
Moreover, some moderate electron-dense secretory granules (30-60 nm in diameter) and scanty cisternae of the rough endoplasmic reticulum (RER) were observed.
Secretory granules bound to the end of an actin filament can move to the plasma membrane as a result of the contraction of acto-myosin that is activated by [Ca.
Rarely, cells contained multiple, eosinophilic, round, 2-3[micro]m diameter secretory granules.