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 ?
The cytoplasm is clear, vacuolated and may contain one or two purple azurophilic granules at the poles.
Review of the peripheral blood smear noted blastlike cells with finely dispersed chromatin, prominent nucleoli, and fine cytoplasmic azurophilic granules (Figure 1, A through C).
MPO, which is abundant in azurophilic granules of neutrophils and in the lysosomes of monocytes, plays a key role in amplifying the toxicity of hydrogen peroxide generated by the respiratory burst (1), (2).
The t(8; 21) subtype is characterized by large blasts with abundant basophilic cytoplasm, with perinuclear clearing or hofs, and numerous azurophilic granules.