Longman Dictionary of Contemporary English homepage

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

placenta

noun
     
Related topics: Human
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

Dictionary pictures of the day
Do you know what each of these is called?
What is the word for picture 1? What is the word for picture 2? What is the word for picture 3? What is the word for picture 4?
Click on any of the pictures above to find out what it is called.

Explore our topic dictionary