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"yolk sac"¿¡ ´ëÇÑ ¼¼ºÎ °Ë»ö °á°úÀÔ´Ï´Ù
WordNet ÀÏ¹Ý ¿µ¿µ »çÀü °Ë»ö °á°ú :
2
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1
yolk sac
membranous structure enclosing the yolk of eggs in birds reptiles marsupials and some fishes
yolk sac
membranous structure that functions as the circulatory system in mammal embryos until the heart becomes functional
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