quadratus /kwɒˈdreɪtəs 
/ ▸ noun (plural quadrati /kwɒˈdreɪtʌɪ/) Anatomy any of several roughly square or rectangular muscles, e.g. in the abdomen, thigh, and eye socket. – ORIGIN early 17th century: from modern Latin, short for quadratus musculus, from Latin, literally ‘made square’.
EnglishOxford Dictionary of English
