Longman Dictionary of Contemporary English homepage

Topic: HUMAN

Date: 1600-1700
Language: Latin
Origin: 'flat cake', from Greek, from plax 'flat surface'

placenta

 noun
     
pla‧cen‧ta [countable]
HBH an organ that forms inside a woman's uterus to feed an unborn baby
—placental adjective [only before noun]
placental blood
Definition of placenta from the Longman Dictionary of Contemporary English within
the topic HUMAN
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