(zoology) maintaining a relatively constant and warm body temperature, regardless of the ambient temperature; endothermic. / (idiomatic) passionate

warm as a freshly baked muffin

Alternative spelling of housewarming

(vulgar, slang) lukewarm

(meteorology) The trailing edge of a retreating mass of cold air.

the state of being warm-blooded

In a warm-hearted manner.

(of cooked food) reheated / (by extension) clichéd, overused or stale

(Britain) warmed-over

plural of warm-up