KEYED
Keyed (ked), a.
Defn: Furnished with keys; as, a keyed instrument; also, set to a key, as a tune. Keyed bugle. See Kent bugle.
KEY FRUIT
Key fruit. (Bot.)
Defn: A samara.
KEYHOLE
Key"hole`, n.
1. A hole or apertupe in a door or lock, for receiving a key.
2. (a) (Carp.) A hole or excavation in beams intended to be joined together, to receive the key which fastens them. (b) (Mach.) a mortise for a key or cotter. Keyhole limpet (Zoöl.), a marine gastropod of the genus Fissurella and allied genera. See Fissurella. — Keyhole saw, a narrow, slender saw, used in cutting keyholes, etc., as in doors; a kind of compass saw or fret saw. — Keyhole urchin (Zoöl.), any one of numerous clypeastroid sea urchins, of the genera Melitta, Rotula, and Encope; — so called because they have one or more perforations resembling keyholes.
KEYNOTE
Key"note`, n.
1. (Mus.)
Defn: The tonic or first tone of the scale in which a piece or passage is written; the fundamental tone of the chord, to which all the modulations of the piece are referred; — called also key tone.