intracellular
adjective
in·tra·cel·lu·lar
ˈin-trə-ˈsel-yə-lər 
ˈin-(ˌ)trä-
: existing, occurring, or functioning within a cell
intracellular parasites
intracellularly
adverb
Examples of intracellular in a Sentence
Recent Examples on the Web
Peptide therapeutics face delivery challenges, including rapid degradation, limited membrane permeability and difficulty reaching intracellular targets.
—
Kj Dhaliwal,
Forbes.com,
26 June 2026
For example, one estimate suggests that intracellular microbial endosymbionts help about 10–15 percent of all insects meet their dietary needs.
—
Encyclopedia Britannica,
18 June 2026
Why Potassium Is Important for Health Potassium is the most abundant intracellular cation, existing in all tissues.
—
Amy Brownstein,
Verywell Health,
5 Feb. 2026
All have been shown to increase intracellular NAD levels, but they haven’t been compared head-to-head in large trials.
—
Boutayna Chokrane,
Wired News,
30 Jan. 2026
See All Example Sentences for intracellular
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Kj Dhaliwal,
Forbes.com,
26 June 2026
For example, one estimate suggests that intracellular microbial endosymbionts help about 10–15 percent of all insects meet their dietary needs.
—
Encyclopedia Britannica,
18 June 2026
Why Potassium Is Important for Health Potassium is the most abundant intracellular cation, existing in all tissues.
—
Amy Brownstein,
Verywell Health,
5 Feb. 2026
All have been shown to increase intracellular NAD levels, but they haven’t been compared head-to-head in large trials.
—
Boutayna Chokrane,
Wired News,
30 Jan. 2026
See All Example Sentences for intracellular
Cite this Entry
“Intracellular.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/intracellular. Accessed 30 Jun. 2026.
Copy CitationKids Definition
intracellular
adjective
in·tra·cel·lu·lar
ˌin-trə-ˈsel-yə-lər
: being or occurring within a cell
intracellularly
adverb
Medical Definition
intracellular
adjective
in·tra·cel·lu·lar
-ˈsel-yə-lər
: existing, occurring, or functioning within a cell
intracellular enzymes
intracellular localization of RNA synthesis
intracellular parasites
intracellularly
adverb
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