meniscus (n.)youdaoicibaDictYouDict[meniscus 词源字典]
"crescent-shaped body," 1690s in reference to lenses, c. 1812 in reference to liquid surfaces, Modern Latin meniscus, from Greek meniskos "lunar crescent," diminutive of mene "moon" (see moon (n.)). Related: Meniscoid.[meniscus etymology, meniscus origin, 英语词源]