plastid

noun plas·tid \ ˈpla-stəd \

Definition of plastid

:any of various cytoplasmic organelles (such as an amyloplast or chloroplast) of photosynthetic organisms (such as plants) that serve in many cases as centers of special metabolic activities (such as starch storage)

plastidial

play \pla-ˈsti-dē-əl\ adjective

Origin and Etymology of plastid

German, from Greek plastos molded


Medical Dictionary

plastid

noun plas·tid \ ˈplas-təd \

medical Definition of plastid

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

plastidial

play \pla-ˈstid-ē-əl\ 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).

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

WORD OF THE DAY

to praise usually to excess

Get Word of the Day daily email!

Test Your Vocabulary

Find the Cousins

  • a-large-tree-with-many-branches
  • Which pair shares a common word ancestor?
Spell It

Can you spell these 10 commonly misspelled words?

TAKE THE QUIZ
Word Winder's CrossWinder

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

TAKE THE QUIZ

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!