Mŭg'gy, a.

a. [compar. MUGGIER; superl. MUGGIEST.] [Prov. Eng. mug, fog, W. mug, smoke, dim. mucan, a cloud of fog, fr. muci, fog; Icel. mugga, mist. See MOKY.]

1. Moist; damp; moldy; as, muggy straw.
2. Moist, or damp and close; warm and unelastic; as, muggy air.