MESENTERON Meaning of MESENTERON in English [ mɪ'sɛntərɒn ]■ noun Zoology the middle section of the intestine, especially in an embryo or arthropod.OriginC19: from Gk mesos 'middle' + enteron 'intestine'. Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004