plano-concave

adjective
pla·​no-con·​cave | \ˌplā-nō-(ˌ)kän-ˈkāv, -ˈkän-ˌkāv\

Definition of plano-concave 

: flat on one side and concave on the other

First Known Use of plano-concave

1693, in the meaning defined above

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The first known use of plano-concave was in 1693

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More Definitions for plano-concave

plano-concave

adjective
pla·​no-con·​cave | \ˌplā-nō-(ˌ)kän-ˈkāv, -ˈkän-ˌ \

Medical Definition of plano-concave 

: flat on one side and concave on the other a plano-concave lens

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