- convexoconcave lens
- a lens that has one convex and one concave surface; the convex surface is of greater curvature than the concave. Called also periscopic concave l., diverging meniscus l., and negative meniscus l.
Medical dictionary. 2011.
convexoconcave lens
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Lens — The transparent structure inside the eye that focuses light rays onto the retina (the nerve layer that lines the back of the eye, senses light and creates impulses that go through the optic nerve to the brain). The lens was named after the lentil … Medical dictionary
concave lens periscopic — convexoconcave l … Medical dictionary
meniscus lens diverging — convexoconcave l … Medical dictionary
meniscus lens negative — convexoconcave l … Medical dictionary
meniscus lens — a crescent shaped lens with one concave surface and one convex; the surfaces have different degrees of curvature. See concavoconvex l. and convexoconcave l … Medical dictionary
Meniscus — The word meniscus comes from the Greek and refers to a crescent shaped structure. Today a meniscus is something that is shaped like a crescent moon or a croissant pastry. A meniscus can be an anatomic feature. For example, the medial meniscus of… … Medical dictionary
Lunette — Lu*nette , n. [F., dim. of lune moon, L. luna. See {Lune} a crescent.] 1. (Fort.) A fieldwork consisting of two faces, forming a salient angle, and two parallel flanks. See {Bastion}. [1913 Webster] 2. (Far.) A half horseshoe, which lacks the… … The Collaborative International Dictionary of English
Lunette window — Lunette Lu*nette , n. [F., dim. of lune moon, L. luna. See {Lune} a crescent.] 1. (Fort.) A fieldwork consisting of two faces, forming a salient angle, and two parallel flanks. See {Bastion}. [1913 Webster] 2. (Far.) A half horseshoe, which lacks … The Collaborative International Dictionary of English
diverging meniscus — a convexoconcave lens … Medical dictionary
negative meniscus — a convexoconcave lens … Medical dictionary
