Medical Dictionary


noun ap·er·ture
\ˈap-ə(r)-ˌch(ə)r, -chər, -ˌt(y)(ə)r\

Medical Definition of APERTURE

:  an opening or open space
:  the diameter of the stop in an optical system that determines the diameter of the bundle of rays traversing the instrument
May 22, 2015
nepotism Hear it
favoritism based on kinship
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