Uterine Organ of Pregnant Mammals
Puzzle 20 of Recording an Album Medium Pack
Question is: Uterine Organ of Pregnant Mammals
and the answer is: PLACENTA
Word Meaning:
PLACENTA — (anatomy) An organ in most mammals during gestation that supplies food and oxygen to the foetus and passes back waste. It is on the wall of the uterus and links to the foetus through the umbilical cord. It is expelled after birth.
Definitions from Wiktionary.