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

secretionary

si-ˈkrē-shə-ˌner-ē 

adjective

Synonyms

• caching
• concealment
• hiding
• stashing

Examples of secretion in a Sentence

the secretion of stomach acids

root secretions that repel insects

Recent Examples on the Web

This snow consists of fragments of dead plants and animals, mucus secretions from marine creatures, discarded exoskeletons, fecal matter, and more. —Scott Travers, Forbes, 20 Dec. 2024

The secretions smell quite pleasant, says Kölliker. —Tim Vernimmen, Smithsonian Magazine, 22 Nov. 2024

Mucilaginous secretions of alien frost seep out of the orb’s frozen shell. —science.org, 19 Sep. 2024

According to a small study, the acidity of the lemon also stimulates the secretion of gastric juices—a digestive fluid in the stomach that can help break down food. —Anna Bader, Glamour, 3 Dec. 2024

Word History

Etymology

French sécrétion, from Latin secretion-, secretio separation, from secernere to separate — more at secret

First Known Use

1646, in the meaning defined at sense 1a

Phrases Containing secretion

• hyper-secretion
• internal secretion

Kids 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

2

: concealment sense 1

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