Quantcast
Merriam-Webster Logo
  • Dictionary
  • Thesaurus
  • Medical
  • Scrabble
  • Spanish Central
  • Learner's Dictionary

plastid

play
noun plas·tid \ˈplas-təd\

Definition of plastid

  1. :  any of various cytoplasmic organelles (as an amyloplast or chloroplast) of photosynthetic cells that serve in many cases as centers of special metabolic activities

plastidial play \pla-ˈsti-dē-əl\ adjective


Origin of plastid

German, from Greek plastos molded


First Known Use: 1885

Rhymes with plastid


Medical Dictionary

plastid

play
noun plas·tid \ˈplas-təd\

Medical Definition of plastid

  1. :  any of various cytoplasmic organelles of photosynthetic cells that serve in many cases as centers of special metabolic activities

plastidial \pla-ˈstid-ē-əl\play adjective



Learn More about plastid


Seen and Heard

What made you want to look up plastid? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

immature or lacking adult sophistication

Get Word of the Day daily email!

WORD GAMES

Take a 3-minute break and test your skills!

image567572573

Which of these is a synonym of unctuous?

maudlin oily angry prompt
Name That Thing

Test your visual vocabulary with our 10-question challenge!

TAKE THE QUIZ
SCRABBLE® Sprint

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ