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Comprehensive
Dictionary Suite
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band shell an outdoor bandstand consisting of a platform and a large, concave, almost hemispherical wall that serves as a sounding board.
biconcave concave on both surfaces, as a lens.
castanet one of a pair of slightly concave wooden or ivory instruments, held in the hand and clicked together to provide rhythmic accompaniment, esp. to certain Spanish dances.
concave a concave line, plane, or structure. [2/3 definitions]
concavity the condition or quality of being concave. [2 definitions]
concavo-concave having both sides concave.
concavo-convex concave on one side and convex on the other. [2 definitions]
congé in architecture, a kind of concave molding. [1/4 definitions]
convexo-concave convex on one side and concave on the other. [2 definitions]
cymbal a concave circular percussion instrument of brass or bronze, played either in pairs that are struck together or singly with drumsticks or brushes.
deadeye one of a pair of hardwood disks with holes and concave rims through and around which certain rigging ropes are passed, used esp. to tighten the stays and shrouds of sailing vessels. [1/2 definitions]
dish a concave antenna, as for television or other communications. [2/7 definitions]
dish antenna a radio antenna with a round, concave reflector, used to receive or send satellite and microwave signals.
flute one of a number of vertical concave channels or grooves, incised esp. on architectural columns and the like. [1/8 definitions]
Fresnel lens a thin and relatively flat optical lens made of many stepped concentric rings, and having the properties of a thicker, more concave lens.
hollow curved inward or downward; concave, sunken, or depressed. [1/10 definitions]
hollowware tableware, esp. silver serving dishes, that is relatively hollow or concave.
pit1 a concave or depressed part of the body, such as the armpit. [1/14 definitions]
plano-concave having one flat and one concave side, as a lens.
radio telescope a concave reflector or array of reflectors designed to collect and focus extraterrestrial radio waves for analysis.
saddle seat a chair seat that is slightly concave and has a lengthwise central ridge.