Thalamus, n. (pl. thalami)
1 Anat. either of two masses of grey matter in the forebrain, serving as relay stations for sensory tracts.
2 Bot. the receptacle of a flower.
3 Gk Antiq. an inner room or women's apartment.
thalamic adj. (in senses 1 and 2).
L f. Gk thalamos