Thal"a*mus (?), n.; pl. Thalami (#). [L. thalamus chamber, Gr. .]
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.
© Webster 1913.