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.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

granule

Geology a single rock fragment in gravel, smaller than a pebble but larger than a sand grain
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005
References in periodicals archive ?
McIntosh, "Newly born granule cells in the dentate gyrus rapidly extend axons into the hippocampal CA3 region following experimental brain injury," Journal of Neurotrauma, vol.
Maintenance of the proper mossy fiber pathway is necessary for normal hippocampal function throughout life as granule cells from the DG are continuously born and incorporated into the hippocampal network.
In contrast to NL1 KO mice, field potential recordings in the dentate gyrus of NL2 KO mice [59] revealed strongly enhanced granule cell firing (Figure 3(c)).
Dentate granule cell somata were contacted in a lower AIS contacted by a higher ratio than in the control (Table 1, [17]).
This type of radial migration is mostly performed by neurons that have executed tangential migration underneath the pial surface and includes granule cells of the cerebellum (6) and neurons of the pontine nuclei (PN) in the hindbrain.
Ceccatelli, "Cytochrome c release and caspase-3 activation during colchicine-induced apoptosis of cerebellar granule cells," European Journal of Neuroscience, vol.
Sweadner, "Isoforms of Na, K-ATpase a and subunits in the rat cerebellum and in granule cell cultures," Journal of Neuroscience, vol.
Once arriving in the inner granule cell layer of the hippocampus from the SGZ, new dentate granule cells are generated.
These cells also showed early markers that are specific to developing Purkinje cells, granule cells, or deep cerebellar projection neurons--all types of neurons only found in the cerebellum.
LTD is accompanied by the reduced quantal size of excitatory synaptic currents at synapses between a granule cell and a Purkinje cell, (45) and by the reduced ionotropic glutamate receptor responsiveness of a Purkinje cell.
(6-8) JCV-associated CNS diseases were classified at admission as follows: 1) classic PML; 2) PML-immune reconstitution inflammatory syndrome (IRIS); and 3) JCV granule cell neuronopathy (GCN).