ther•mo•stat
Pronunciation: (thûr'mu-stat"), [key]
— n., v., -stat•ted -stat -stat•ting -stat•ing.
—n.
- a device, including a relay actuated by thermal conduction or convection, that functions to establish and maintain a desired temperature automatically or signals a change in temperature for manual adjustment.
—v.t.
- to equip or control with a thermostat.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.