EMBRYO Meaning of EMBRYO in English I . n. 1.Germ, rudiment, ~n.2.Rudimentary state, first stage, beginning. II . a. Embryotic, ~nic, ~n, ~nal, ~nate, ~us, rudimentary, undeveloped. Soule. Dictionary of English synonyms. Словарь английских синонимов. 2012