secretion
noun
se·cre·tion
si-ˈkrē-shən 
1
a
: the process of segregating, elaborating, and releasing some material either functionally specialized (such as saliva) or isolated for excretion (such as urine)
b
: a product of secretion formed by an animal or plant
especially
: one performing a specific useful function in the organism
2
[secrete entry 2]
: the act of hiding something : concealment
Examples of secretion in a Sentence
the secretion of stomach acids
root secretions that repel insects
Recent Examples on the Web
But, unlike most glands, including the apocrine glands in human armpits, they are not connected to the secretions of the body that houses them, and so might be better described as pockets.
—
Literary Hub, 19 Sep. 2025
At the beginning of the trial and after 12, 24 and 48 weeks, researchers measured participants' C-peptide levels (a marker of insulin secretion) to find out how much insulin participants could make themselves.
—Hannah Millington, MSNBC Newsweek, 18 Sep. 2025
May Help Control Blood Sugar Magnesium plays a role in insulin secretion.
—Jennifer Lefton, Verywell Health, 16 Sep. 2025
Look for unusual stains or scents around your windows or on your upholstered furniture, which could potentially be signs of insect secretions.
—Sophia Beams, Better Homes & Gardens, 4 Sep. 2025
See All Example Sentences for secretion
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Literary Hub, 19 Sep. 2025
At the beginning of the trial and after 12, 24 and 48 weeks, researchers measured participants' C-peptide levels (a marker of insulin secretion) to find out how much insulin participants could make themselves.
—Hannah Millington, MSNBC Newsweek, 18 Sep. 2025
May Help Control Blood Sugar Magnesium plays a role in insulin secretion.
—Jennifer Lefton, Verywell Health, 16 Sep. 2025
Look for unusual stains or scents around your windows or on your upholstered furniture, which could potentially be signs of insect secretions.
—Sophia Beams, Better Homes & Gardens, 4 Sep. 2025
See All Example Sentences for secretion
Cite this Entry
“Secretion.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/secretion. Accessed 22 Sep. 2025.
Copy CitationKids Definition
secretion
noun
se·cre·tion
si-ˈkrē-shən
1
a
: the process of giving off a substance (as saliva)
b
: a substance produced and given off by a gland
especially
: one (as an enzyme) that performs a specific useful function in the body
Medical Definition
secretion
noun
se·cre·tion
si-ˈkrē-shən
1
: the process of segregating, elaborating, and releasing some material either functionally specialized (as saliva) or isolated for excretion (as urine)
2
: a product of secretion formed by an animal or plant
especially
: one performing a specific useful function in the organism
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