CRENATION - Definition

Pronunciation:		kri'neyshun
WordNet Dictionary

	Definition:	[n] one of a series of rounded projections (or the notches between them) formed by curves along an edge (as the edge of a leaf or piece of cloth or the margin of a shell or a shriveled red blood cell observed in a hypertonic solution etc.)

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	Synonyms:	crenature, crenel, crenelle, scallop

	See Also:	curve, curved shape

Webster's 1913 Dictionary

	Definition:	\Cre*na"tion\ (kr?-n?"sh?n), n. 1. (Bot.) A rounded tooth on the edge of a leaf. 2. The condition of being crenate.

Biology Dictionary

	Definition:	The condition of a red blood cell which has abnormally shrunk, in general due to osmotic changes in its surrounding medium (blood plasma, usually) -- that is, the amount of solutes in the medium becomes much greater than the contents of the red blood cell so the water plumping up the red blood cell flows out of it and into the medium, causing it to shrink.