in·​tra·​cel·​lu·​lar | \ ˈin-trə-ˈsel-yə-lər How to pronounce intracellular (audio) , ˈin-(ˌ)trä- \

Definition of intracellular

: existing, occurring, or functioning within a cell intracellular parasites

Keep scrolling for more

Other Words from intracellular

intracellularly adverb

Examples of intracellular in a Sentence

Recent Examples on the Web The neuron in the center (yellow) contains an abnormal intracellular accumulation of huntingtin called an inclusion body (orange). San Diego Union-Tribune, "Huntington’s disease triggered by genetic instability in brain cells, study finds," 15 Aug. 2019 That intracellular lipid mortar is partly composed of a form of lipids called ceramides. Carolyn L. Todd, SELF, "11 Things Dermatologists Want You to Know About Sensitive Skin," 16 May 2018 T cells scan the intracellular environment and then, with the help of other parts of the defense system, target and destroy invaders such as viruses. Marie Mccullough,, "Cracking the cancer code: Can immune therapy treat tumors?," 5 Apr. 2018 The slow growth, together with its intracellular residence, make extracting M. leprae from human tissue incredibly difficult. Beth Mole, Ars Technica, "Berserk leprosy bacteria are wildly mutating to become extremely drug resistant," 29 Jan. 2018 When its external part contacts a particular feature on the surface of a cell, its intracellular part sends a signal through a cascade of molecules that eventually results in collection genes getting expressed. Diana Gitig, Ars Technica, "Swiss lab develops genetic tool kit to turn any cell into a tumor killer," 17 Nov. 2017 These all converged on one target, CRMP2, an intracellular protein that regulates neural networks. Bradley J. Fikes,, "Lithium's mysterious efficacy in bipolar disorder explained at last," 8 May 2017

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'intracellular.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

See More

First Known Use of intracellular

1876, in the meaning defined above

Keep scrolling for more

Learn More about intracellular

Time Traveler for intracellular

Time Traveler

The first known use of intracellular was in 1876

See more words from the same year

Statistics for intracellular

Cite this Entry

“Intracellular.” Dictionary, Merriam-Webster, Accessed 29 Mar. 2020.

Keep scrolling for more

More Definitions for intracellular


in·​tra·​cel·​lu·​lar | \ -ˈsel-yə-lər How to pronounce intracellular (audio) \

Medical Definition of intracellular

: existing, occurring, or functioning within a cell intracellular enzymes intracellular localization of RNA synthesis intracellular parasites

Other Words from intracellular

intracellularly adverb

Comments on intracellular

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


See Definitions and Examples »

Get Word of the Day daily email!

Test Your Vocabulary

March 2020 Words of the Day Quiz

  • field of crocuses
  • Which is a synonym of rectitudinous?
Spell It

Can you spell these 10 commonly misspelled words?

Syn City

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

Love words? Need even more definitions?

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