unicellular
adjective
uni·cel·lu·lar
ˌyü-ni-ˈsel-yə-lər 
: having or consisting of a single cell
unicellular microorganisms
Examples of unicellular in a Sentence
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From a technical point of view, brewer’s yeast is a collection of microscopic, nonpathogenic unicellular fungi known by the scientific name saccharomyces cerevisiae, which can be used in an active or inactive form.
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Beatrice Zocchi, Vogue, 16 Apr. 2025
How life evolved from unicellular to multicellular organisms remains a mystery, though evidence indicates that this may have occurred multiple times independently.
—Steven Strogatz, Quanta Magazine, 20 Mar. 2025
But in any case, one question then is how does a unicellular organism manage to make this transition, in any of these cases?
—Steven Strogatz, Quanta Magazine, 20 Mar. 2025
This would mean that the transition from unicellular to multicellular life was not a leap requiring entirely new genes but rather an evolutionary refinement of existing genetic mechanisms.
—Scott Travers, Forbes, 11 Dec. 2024
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Beatrice Zocchi, Vogue, 16 Apr. 2025
How life evolved from unicellular to multicellular organisms remains a mystery, though evidence indicates that this may have occurred multiple times independently.
—Steven Strogatz, Quanta Magazine, 20 Mar. 2025
But in any case, one question then is how does a unicellular organism manage to make this transition, in any of these cases?
—Steven Strogatz, Quanta Magazine, 20 Mar. 2025
This would mean that the transition from unicellular to multicellular life was not a leap requiring entirely new genes but rather an evolutionary refinement of existing genetic mechanisms.
—Scott Travers, Forbes, 11 Dec. 2024
See All Example Sentences for unicellular
Cite this Entry
“Unicellular.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/unicellular. Accessed 24 Apr. 2025.
Copy CitationKids Definition
unicellular
adjective
uni·cel·lu·lar
ˌyü-ni-ˈsel-yə-lər
: having or consisting of a single cell
unicellular microorganisms
Medical Definition
unicellular
adjective
uni·cel·lu·lar
ˌyü-ni-ˈsel-yə-lər
: having or consisting of a single cell
unicellular microorganisms
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