functional group

noun

Definition of functional group

: a characteristic reactive unit of a chemical compound especially in organic chemistry

First Known Use of functional group

1906


Medical Dictionary

functional group

noun

medical Definition of functional group

: a characteristic reactive unit of a chemical compound

Learn More about functional group


Seen and Heard

What made you want to look up functional group? 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 lessen the seriousness or strength of

Get Word of the Day daily email!

Test Your Vocabulary

What's That From? A Word Origin Quiz

  • turris-babel-by-athanasius-kircher
  • What language gave the word robot to English?
Spell It

Can you spell these 10 commonly misspelled words?

TAKE THE QUIZ
Add Diction

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!