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TOEFL BNC: 21027 COCA: 20157

concave

1 ENTRIES FOUND:
concave /ˌkɑːnˈkeɪv/ adjective
concave
/ˌkɑːnˈkeɪv/
adjective
Learner's definition of CONCAVE
[more concave; most concave]
: having a shape like the inside of a bowl : curving inward凹的
opposite convex
TOEFL BNC: 21027 COCA: 20157

concave

1 of 2

adjective

1
: hollowed or rounded inward like the inside of a bowl
a concave lens
2
: arched in : curving in
used of the side of a curve or surface on which neighboring normals to the curve or surface converge and on which lies the chord joining two neighboring points of the curve or surface

concave

2 of 2

noun

con·​cave ˈkän-ˌkāv How to pronounce concave (audio)
: a concave line or surface

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TOEFL BNC: 21027 COCA: 20157

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