[ 'trɒfə(ʊ)blast , 'trəʊf- ]
■ noun Embryology a layer of tissue on the outside of a mammalian blastula, supplying the embryo with nourishment and later forming the major part of the placenta.
Derivatives
~ic adjective
[ 'trɒfə(ʊ)blast , 'trəʊf- ]
■ noun Embryology a layer of tissue on the outside of a mammalian blastula, supplying the embryo with nourishment and later forming the major part of the placenta.
Derivatives
~ic adjective
Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004