- the outer layer of cells of the embryo of placental mammals, which is attached to the uterus wall and absorbs nourishment from the uterine fluids
| 单词 | trophoblast |
| 释义 | WordReference Random House Unabridged Dictionary of American English © 2024 troph•o•blast (trof′ə blast′, trō′fə-),USA pronunciation n. [Embryol.]
Collins Concise English Dictionary © HarperCollins Publishers:: trophoblast /ˈtrɒfəˌblæst/ n
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