plural germs
Synonyms of germnext
1
a
: a small mass of living substance capable of developing into an organism or one of its parts
b
: the embryo with the scutellum of a cereal grain that is usually separated from the starchy endosperm during milling
2
: something that initiates development or serves as an origin : rudiments, beginning
3
: a microorganism causing disease : a pathogenic agent (such as a bacterium or virus)
broadly : microorganism

Examples of germ in a Sentence

the germ that causes tuberculosis the germ of an idea the germ layers of an embryo
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Unwashed Leafy Greens While all produce can become contaminated with harmful germs, leafy greens are especially susceptible. Kirsten Nunez, Martha Stewart, 10 Feb. 2026 Refined grains have been processed to remove the bran (the fiber-rich outer layer) and germ (the sprout). Brianna Tobritzhofer, Health, 9 Feb. 2026 Vaccinations and other preventatives against ever-evolving germs do not on their own guarantee personal safety—only eradication can do that. Vann R. Newkirk Ii, The Atlantic, 9 Feb. 2026 And use a disinfectant to clean the underside of your tables and bar tops, to avoid dust, grime, and other nasty germs from touching your legs and clothes. Daley Quinn, Southern Living, 8 Feb. 2026 See All Example Sentences for germ

Word History

Etymology

French germe, from Latin germin-, germen, from gignere to beget — more at kin

First Known Use

circa 1550, in the meaning defined at sense 2

Time Traveler
The first known use of germ was circa 1550

Browse Nearby Words

Cite this Entry

“Germ.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/germ. Accessed 15 Feb. 2026.

Kids Definition

germ

noun
1
a
: a small mass of living substance capable of developing into a whole individual or one of its parts
b
: the embryo in the seed of a cereal (as corn or wheat) together with its cotyledon that is usually separated from the starchy part of the seed during milling
2
: something that serves as an origin
the germ of an idea
3
: a microscopic living thing
especially : one that causes disease

Medical Definition

germ

noun
1
: a small mass of living substance capable of developing into an organism or one of its parts
2
: a microorganism causing disease : a pathogenic agent (as a bacterium or virus)
broadly : microorganism

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