fas·ci·a / ˈfash(ē)ə; ˈfā-/ • n. 1. a wooden board or other flat piece of material such as that covering the ends of rafters. ∎  a covering, typically a detachable one, for the front part of a cellular phone. ∎  (in classical architecture) a long flat surface between moldings on an architrave.2. (pl. fas·ci·ae / -shēˌē/ ) Anat. a thin sheath of fibrous tissue enclosing a muscle or other organ.

fascia (pl. fasciae.)
1. One of two or three bands on a Classical architrave, each projecting slightly beyond the one below, often separated by enriched mouldings.

2. Any band or belt with a plain vertical face, such as a fascia-board at eaves-level.

3. Deep board over a shop-front on which lettering is placed.

fascia (fash-iă) n. (pl. fasciae) connective tissue that envelops organs and tissues, forms sheaths for muscles, and is found immediately beneath the skin.

fascia A sheet of fibrous connective tissue occurring beneath the skin and also enveloping glands, vessels, nerves, and forming muscle and tendon sheaths.

fascia (archit.) long flat surface or band XVI; (anat.) sheath investing an organ. XVIII. — L. fascia band, fillet, casing of a door, etc., rel. to fascis bundle.