isoenzyme

noun

iso·​en·​zyme ˌī-sō-ˈen-ˌzīm How to pronounce isoenzyme (audio)
: any of two or more chemically distinct but functionally similar enzymes
isoenzymatic
ˌī-sō-ˌen-zə-ˈma-tik How to pronounce isoenzyme (audio)
-zī-
adjective
isoenzymic
ˌī-sō-en-ˈzī-mik How to pronounce isoenzyme (audio)
adjective

Word History

First Known Use

1960, in the meaning defined above

Time Traveler
The first known use of isoenzyme was in 1960

Rhymes for isoenzyme

See All Rhymes for isoenzyme

Browse Nearby Words

isoenzyme
See all Nearby Words

Cite this Entry

“Isoenzyme.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/isoenzyme. Accessed 21 Mar. 2025.

Copy Citation

Share

Medical Definition

isoenzyme

noun
iso·​en·​zyme -ˈen-ˌzīm How to pronounce isoenzyme (audio)
: any of two or more chemically distinct but functionally similar enzymes

called also isozyme

isoenzymatic
ˈī-sō-ˌen-zə-ˈmat-ik, -zī- How to pronounce isoenzyme (audio)
adjective
isoenzymic
-en-ˈzī-mik How to pronounce isoenzyme (audio)
adjective
Love words? Need even more definitions?

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

Popular in Grammar & Usage

See More

The Difference Between 'i.e.' and 'e.g.'

How to Use Em Dashes (—), En Dashes (–) , and Hyphens (-)

Why is '-ed' sometimes pronounced at the end of a word?

What's the difference between 'fascism' and 'socialism'?

More Commonly Misspelled Words
See More

Popular in Wordplay

See More

What do SCOTUS, POTUS, and FLOTUS mean?

Flower Etymologies For Your Spring Garden

More Words with Remarkable Origins

Terroir, Oenophile, & Magnum: Ten Words About Wine

8 Words for Lesser-Known Musical Instruments
See More

Popular Features

See More

The Difference Between 'i.e.' and 'e.g.'

What do SCOTUS, POTUS, and FLOTUS mean?

Flower Etymologies For Your Spring Garden
See More

Games & Quizzes

See All
Play Quordle: Guess all four words in a limited number of tries. Each of your guesses must be a real 5-letter word.
Quordle Can you solve 4 words at once?
Play Blossom: Solve today's spelling word game by finding as many words as you can using just 7 letters. Longer words score more points.
Blossom Word Game Pick the best words!
Play Missing Letter: a crossword with a twist. Each of the 25 puzzle words start with a different letter of the alphabet. Which letter is missing?
Missing Letter A daily crossword with a twist
number-twelve-balloon
12-Letter Words Quiz A dozen words, a dozen letters each.
See All