THALAMUS - Definition

Pronunciation:		'thalumus
WordNet Dictionary

	Definition:	[n] large egg-shaped structures of gray matter that form the dorsal subdivision of the diencephalon

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	See Also:	betweenbrain, diencephalon, geniculate body, interbrain, neural structure, thalmencephalon

Webster's 1913 Dictionary

	Definition:	\Thal"a*mus\, n.; pl. {Thalami}. [L. thalamus chamber, Gr. qa`lamos.] 1. (Anat.) A mass of nervous matter on either side of the third ventricle of the brain; -- called also {optic thalamus}. 2. (Bot.) (a) Same as {Thallus}. (b) The receptacle of a flower; a torus.

Medical Dictionary

	Definition:	Part of the brain through which nearly all sensory input passes to the cerebral cortex.

Biology Dictionary

	Definition:	The thalamus is a large, ovoid gray mass on either side of the third ventricle of the brain. Its function is in the perception of sensation.