mesomorph (n.)youdaoicibaDictYouDict[mesomorph 词源字典]
1940, from meso- + -morph, from Greek morphe "form" (see Morpheus). Coined by W.H. Shelton; the reference is to the mesodermal layer of the embryo. Related: Mesomorphic (attested from 1923 in chemistry).[mesomorph etymology, mesomorph origin, 英语词源]
WiffleyoudaoicibaDictYouDict
hollow, perforated plastic ball, registered trademark name (The Wiffle Ball Inc., Shelton, Connecticut, U.S.), claiming use from 1954. According to the company, designed in 1953 by David N. Mullany "in response to a lack of field space and numerous broken windows by his baseball-playing son," the name based on whiff (q.v.), baseball slang for a missed swing.