Dictionary

secretion

noun se·cre·tion \si-ˈkrē-shən\

: the production of a liquid by part of a plant or animal

: a substance produced and given off by a plant or animal part

Full Definition of SECRETION

1
a :  the process of segregating, elaborating, and releasing some material either functionally specialized (as saliva) or isolated for excretion (as urine)
b :  a product of secretion formed by an animal or plant; especially :  one performing a specific useful function in the organism
2
[2secrete] :  the act of hiding something :  concealment
se·cre·tion·ary \-shə-ˌner-ē\ adjective

Examples of SECRETION

  1. the secretion of stomach acids
  2. root secretions that repel insects

Origin of SECRETION

French sécrétion, from Latin secretion-, secretio separation, from secernere to separate — more at secret
First Known Use: 1646

secretion

noun se·cre·tion \si-ˈkrē-shən\   (Medical Dictionary)

Medical Definition of SECRETION

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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