isoenzyme

noun

iso·en·zyme ˌī-sō-ˈen-ˌzīm

: any of two or more chemically distinct but functionally similar enzymes

isoenzymatic

ˌī-sō-ˌen-zə-ˈma-tik

-zī-

adjective

isoenzymic

ˌī-sō-en-ˈzī-mik

adjective

Word History

First Known Use

1960, in the meaning defined above

Time Traveler

The first known use of isoenzyme was in 1960

See more words from the same year

Browse Nearby Words

isoelectronic

isoenzyme

Isoetales

See all Nearby Words

Cite this Entry

Style

“Isoenzyme.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/isoenzyme. Accessed 16 Mar. 2025.

Copy Citation

Medical Definition

isoenzyme

noun

iso·en·zyme -ˈen-ˌzīm

: any of two or more chemically distinct but functionally similar enzymes

called also isozyme

isoenzymatic

ˈī-sō-ˌen-zə-ˈmat-ik, -zī-

adjective

isoenzymic

-en-ˈzī-mik

adjective

Popular in Grammar & Usage

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

'Affect' vs. 'Effect'

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

More Commonly Misspelled Words

Words You Always Have to Look Up

Popular in Wordplay

13 Unusually Long English Words

9 Superb Owl Words

8 Words with Fascinating Histories

8 Words for Lesser-Known Musical Instruments

Birds Say the Darndest Things

Popular Features

isoenzyme

noun

Word History

Browse Nearby Words

Cite this Entry

Medical Definition

More from Merriam-Webster

Can you solve 4 words at once?

Can you solve 4 words at once?

Word of the Day

rife

Popular in Grammar & Usage