granule (redirected from keratohyalin granules)

gran·ule  (grnyl)

n.

1. A small grain or pellet; a particle.

2. Geology A rock or mineral fragment larger than a sand grain and smaller than a pebble, between 2 and 4 millimeters in diameter.

3. Astronomy One of the small, transient, brilliant markings in the photosphere of the sun.

4. Biology A cellular or cytoplasmic particle, especially one that stains readily.

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[Late Latin grnulum, diminutive of Latin grnum, grain; see g-no- in Indo-European roots.]

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granule

Noun

a small grain of something: gravy granules [Late Latin granulum a small grain]

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granule  (grnyl)

1. A rock or mineral fragment larger than a sand grain and smaller than a pebble. Granules have a diameter between 2 and 4 mm (0.08 and 0.16 in) and are often rounded.

2. Any of the small, transient convective cells within the Sun's photosphere where hot gases rise and quickly dissipate. Granules are generally between a few hundred and 1,500 km in width. They completely cover the Sun's surface, giving it its characteristic grainy or stippled look, and form and break up within a matter of minutes.

3. An aggregate of enclosed grainy matter found in a cell. Granulocytes, mast cells and other cells contain granules in their cytoplasm, which differ in size and can often be identified by a characteristic laboratory stain based on their composition. Granules produce and store biologically active substances, the release of which is called degranulation. The granules of granulocytes contain mostly multiple enzymes and other proteins; those of mast cells contain histamine and other chemical mediators.

Thesaurus

Noun

1.

granule - a tiny grain microsome - a tiny granule in the cytoplasm that is where protein synthesis takes place under the direction of mRNA chondrule - small granule (of e.g. chrysolite) found in some meteoric rocks grain - a relatively small granular particle of a substance; "a grain of sand"; "a grain of sugar" plastid - any of various small particles in the cytoplasm of the cells of plants and some animals containing pigments or starch or oil or protein

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granule

noun grain, scrap, molecule, particle, fragment, atom, crumb, jot, speck, iota

Translations

granule [ˈgrænjuːl] n → gránulo

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granule [ˈgrænjuːl] n → granule m

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granule [ˈgrænjuːl] n → Körnchen nt

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granule [ˈgrænjuːl] n → granello