[ 'dju:tərəʊstəʊm ]
■ noun Zoology an organism whose mouth develops from a secondary embryonic opening, such as a vertebrate. Compare with protostome .
Origin
1950s: from deutero- + Gk stoma 'mouth'.
[ 'dju:tərəʊstəʊm ]
■ noun Zoology an organism whose mouth develops from a secondary embryonic opening, such as a vertebrate. Compare with protostome .
Origin
1950s: from deutero- + Gk stoma 'mouth'.
Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004