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biconcave

   Also found in: Dictionary/thesaurus 0.09 sec.
biconcave /bi·con·cave/ (bi″kon-kāv´) having two concave surfaces.
bi·con·cave (bkn-kv, b-knkv)
adj.
Concave on both sides or surfaces.
biconcave
[bīkon′kāv]
Etymology: L, bis, twice, concavare, to make hollow
concave on both sides, especially as applied to a lens. biconcavity, n.
biconcave
having two concave surfaces.


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Pioneering work done at the NIST Center for Neutron Research (NCNR), in collaboration with a private company, demonstrated that focusing a cold neutron beam with multiple biconcave lenses is a practical means of improving the resolution of long-flight-path, pinhole collimation, small-angle neutron scattering (SANS) instruments.
Corrective refractive optics sharpens focus of SANS instrument. ... by Journal of Research of the National Institute of Standards and Technology
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