- sound lens
- noun
: a lens that brings sound waves to a focus (as by having walls of collodion film and being filled with a heavy gas which retards and consequently refracts sound waves)
Useful english dictionary. 2012.
sound lens
Look at other dictionaries:
lens — [lenz] n. [L, lentil: from the resemblance to the shape of a lentil] 1. a) a piece of glass, or other transparent substance, with two curved surfaces, or one plane and one curved, regularly bringing together or spreading rays of light passing… … English World dictionary
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
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lens — I. noun Etymology: New Latin lent , lens, from Latin, lentil; from its shape Date: 1673 1. a. a piece of transparent material (as glass) that has two opposite regular surfaces either both curved or one curved and the other plane and that is used… … New Collegiate Dictionary
lens — [[t]lɛnz[/t]] n. pl. lens•es 1) opt a piece of transparent substance, usu. glass, having two opposite surfaces either both curved or one curved and one plane, used in optical devices for changing the convergence of light rays, as for… … From formal English to slang
lens — n. 1 a piece of a transparent substance with one or (usu.) both sides curved for concentrating or dispersing light rays esp. in optical instruments. 2 a combination of lenses used in photography. 3 Anat. = crystalline lens. 4 Physics a device for … Useful english dictionary
Lens — n. 1 a piece of a transparent substance with one or (usu.) both sides curved for concentrating or dispersing light rays esp. in optical instruments. 2 a combination of lenses used in photography. 3 Anat. = crystalline lens. 4 Physics a device for … Useful english dictionary
lens — noun 1》 a piece of glass or other transparent material with one or both sides curved for concentrating or dispersing light rays. ↘Anatomy the transparent elastic structure behind the iris by which light is focused on to the retina of the eye … English new terms dictionary
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