Merriam-Webster Logo
SINCE 1828
Menu
dictionary thesaurus

coenzyme A

noun

Definition of coenzyme A

: a coenzyme C21H36N7O16P3S that occurs in all living cells and is essential to the metabolism of carbohydrates, fats, and some amino acids — compare acetyl coenzyme a

First Known Use of coenzyme a

1947

in the meaning defined above

See Words from the same year
NEW! Time Traveler

Medical Dictionary

coenzyme A

noun

medical Definition of coenzyme A

: a coenzyme C21H36N7O16P3S that occurs in all living cells and is essential to the metabolism of carbohydrates, fats, and some amino acids

Seen and Heard

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

show hide

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

acolyte

play

one who attends or assists a leader

Get Word of the Day daily email!

TRENDING NOW

  1. exculpatory 'tending or serving to exculpate'

  2. ideologue 'an often blindly partisan advocate or adherent of a particular ideology'

  3. socialism 'a way of organizing a society in which major industries are owned and controlled by the government'

  4. uphold 'to let stand'

  5. due process 'a course of formal proceedings (as judicial proceedings)'

SEE ALL

BROWSE DICTIONARY

coenzyme A

Test Your Vocabulary

Test Your Emoji Exceptionalism

  • test-your-emoji-exceptionalism-written-with-a-lot-of-emoji
  • What is this emoji intended to represent: 🤳
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

Love words? Need even more definitions?

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

Words at Play

Ask the Editors

Word Games