01 n. A hole or apertupe in a door or lock, for receiving a key.
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1.
A hole or apertupe in a door or lock, for receiving a key.
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2.
A hole or excavation in beams intended to be joined together, to receive the key which fastens them.(Carp.)
Phrases & compounds
Keyhole limpet —
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 —
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.