Phrases starting with the letter: A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Previous word: tropho
Next word: trophogenesis
Definition of: trophoblast
(trof′ə·blast) noun Biol.
The ectodermal layer of cells in the embryo that establishes relation with the uterus and is concerned in the nutrition of the embryo and fetus. Also troph′o·derm (-dûrm). [<TROPHO- + -BLAST]
—troph′o·blas′tic adjective
Comment about this word, ask questions, or add new information about this topic: