monoembryonic
/ˌmɒnə(ʊ)ɛmbrɪˈɒnɪk/(also monembryonic) Botany and Zoology rare before late 20th cent
adjective
Having or characterized by a single embryo; relating to a single embryo.
Origin
Late 19th century; earliest use found in James Stormonth (1824–1882), Episcopalian minister and lexicographer. From mono- + embryonic, after monoembryony.