உதானம்
uthaanam
உதானன், s. a vital air of the body (one of the 1.)
J.P. Fabricius Dictionary
[utāṉam ] --உதானன், ''s.'' One of the ten vital airs, that which rises from the navel by way of the throat and passes into the head, supposed to promote diges tion, தசவாயுவிலொன்று. Wils. p. 147.
Miron Winslow