Last Updated
：2025/11/20
concave
IPA(Pronunciation)
Adjective
not-comparable
of a polygon
of a real-valued function on the reals
Japanese Meaning
球面または鉢の内側のように内側に曲がっている形状 / （幾何学的に）凸ではなく、少なくとも一つの内部角が180度を超える形状
Sense（2）
Sense（3）
（ comparative ）
（ superlative ）
Quizzes for review
curved like the inner surface of a sphere or bowl / (geometry, not comparable, of a polygon) not convex; having at least one internal angle greater than 180 degrees.
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See correct answer
concave
The concave mirror gathered the sunlight into a bright focal point.
See correct answer
The concave mirror gathered the sunlight into a bright focal point.
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English - English
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