Definition of concave
- a concave lens
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'concave.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
: having a shape like the inside of a bowl : curving inward
What made you want to look up concave? Please tell us where you read or heard it (including the quote, if possible).
to emit the high shrill tone of bagpipes
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