"Each of the mobile, flattened, paddle-like arrays of fused cilia which are arranged in rows to form the swimming organs of Ctenophora; a comb plate", Early 20th cent. Either from cten- or directly from ancient Greek κτεν-, κτείς (in Byzantine Greek also with nominative κτήν) comb, after scientific Latin CtenophoraCtenophora.[ctene etymology, ctene origin, 英语词源]