TRIGEMINUS Meaning of TRIGEMINUS in English [ trʌɪ'dʒɛmɪnəs ]■ noun ( plural trigemini -nʌɪ ) Anatomy each of the trigeminal nerves.OriginC19: from L., lit. 'three born at the same birth', extended to mean 'threefold'. Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004