corpuscle

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corpuscle

1. any cell or similar minute body that is suspended in a fluid, esp any of the red blood corpuscles (see erythrocyte) or white blood corpuscles (see leucocyte).
2. Anatomy the encapsulated ending of a sensory nerve
3. Physics a discrete particle such as an electron, photon, ion, or atom
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005

corpuscle

[′kȯr·pəs·əl]
(anatomy)
A small, rounded body.
(neuroscience)
An encapsulated sensory-nerve end organ.
(optics)
A particle of light in the corpuscular theory, corresponding to the photon in the quantum theory.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.