The Collaborative International Dictionary
Thermantidote
Thermantidote \Ther*man"ti*dote\, n. [Gr. ? heat + E. antidote.] A device for circulating and cooling the air, consisting essentially of a kind of roasting fan fitted in a window and incased in wet tatties. [India]
Will you bring me to book on the mountains, or where
the thermantidotes play?
--Kipling.
Wiktionary
thermantidote
n. An antidote to heat, especially a rotating fan attached to a window.