From The Collaborative International Dictionary of English v.0.44 [gcide]:
1. A crescent.
From WordNet (r) 2.0 [wn]:
From Moby Thesaurus II by Grady Ward, 1.0 [moby-thes]:
36 Moby Thesaurus words for "meniscus": achromatic lens, astigmatic lens, burning glass, camera, coated lens, concave lens, concavo-convex lens, condenser, convex lens, crescent, crescent moon, eyeglass, eyepiece, glass, half-moon, hand lens, horseshoe, lens, lunula, lunule, magnifier, magnifying glass, object glass, objective, objective prism, ocular, prism, reader, reading glass, scythe, semicircle, sickle, telephoto lens, toric lens, varifocal lens, zoom lens
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