DIMEROUS Meaning of DIMEROUS in English [ 'dɪm(ə)rəs ]■ adjective Botany & Zoology having parts arranged in groups of two. ↘consisting of two joints or parts.OriginC19: from mod. L. dimerus + -ous . Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004