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se·cre·tion 1

1. The process of secreting a substance, especially one that is not a waste, from the blood or cells: secretion of hormones; secretion of milk by the mammary glands.
2. A substance, such as saliva, mucus, tears, bile, or a hormone, that is secreted.

[French sécrétion, from Old French, separation, from Latin sēcrētiō, sēcrētiōn-, from sēcrētus, past participle of sēcernere, to set aside; see secern.]

se·cre′tion·ar′y (-shə-nĕr′ē) adj.

se·cre·tion 2

1. The act of concealing something in a hiding place.
2. The act of stealing something secretly.

[From secrete.]


1. (Biology) a substance that is released from a cell, esp a glandular cell, and is synthesized in the cell
2. (Biology) the process involved in producing and releasing such a substance from the cell
[C17: from Medieval Latin sēcrētiō, from Latin: a separation; see secern]
seˈcretionary adj


(sɪˈkri ʃən)

1. (in a cell or gland) the process of separating, elaborating, and releasing a substance that fulfills some function within the organism or undergoes excretion.
2. the product of this process.
[1640–50; < Latin sēcrētiō separation, derivative of sēcrē-, variant s. of sēcernere (see secern)]
se•cre′tion•ar`y (-ʃəˌnɛr i) adj.


  • gall - As in gallbladder, it refers to a secretion of the liver or to bile.
  • honeyflow - The period of secretion of honey or nectar by flowers.
  • sepia - A cuttlefish, the origin of the brown pigment prepared from a secretion of the fish.
  • larp - The secretion from eucalyptus.


The natural production and release of a useful substance.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.secretion - the organic process of synthesizing and releasing some substance
galactosis - the secretion of milk
hypersecretion - excessive secretion
biological process, organic process - a process occurring in living organisms
salivation - the secretion of saliva
2.secretion - a functionally specialized substance (especially one that is not a waste) released from a gland or cell
ganoin, ganoine - shiny substance that resemble enamel and is secreted by the corium of certain fishes (especially ganoid fishes) and composes the outer layer of their scales
bodily fluid, body fluid, liquid body substance, humour, humor - the liquid parts of the body
lachrymal secretion, lacrimal secretion - saline fluid secreted by lacrimal glands; lubricates the surface of the eyeball
perspiration, sudor, sweat - salty fluid secreted by sweat glands; "sweat poured off his brow"
endocrine, hormone, internal secretion - the secretion of an endocrine gland that is transmitted by the blood to the tissue on which it has a specific effect
intestinal juice - secretions by glands lining the walls of the intestines
autacoid, autocoid - any physiologically active internal secretion especially one of uncertain classification
synovia, synovial fluid - viscid lubricating fluid secreted by the membrane lining joints and tendon sheaths etc.
mucous secretion, mucus - protective secretion of the mucus membranes; in the gut it lubricates the passage of food and protects the epithelial cells; in the nose and throat and lungs it can make it difficult for bacteria to penetrate the body through the epithelium
saliva, spittle, spit - a clear liquid secreted into the mouth by the salivary glands and mucous glands of the mouth; moistens the mouth and starts the digestion of starches
sebum - the oily secretion of the sebaceous glands; with perspiration it moistens and protects the skin
royal jelly - a secretion of the pharyngeal glands of bees that is fed to very young larvae and to bees destined to be queens
musk - an odorous glandular secretion from the male musk deer; used as a perfume fixative
nectar - a sweet liquid secretion that is attractive to pollinators
pheromone - a chemical substance secreted externally by some animals (especially insects) that influences the physiology or behavior of other animals of the same species


noun discharge, emission, excretion, exudation, extravasation (Medical) the secretion of adrenaline
إفْرازإفْراز، مادَّه مُفْرَزَه


[sɪˈkriːʃən] N
1. (Med) → secreción f
2. (= hiding) → ocultación f


[sɪˈkriːʃən] n [plant, animal, human] → sécrétion f


(= hiding)Verbergen nt
(Med: = act) → Absonderung f, → Sekretion f; (= substance)Sekret nt


[sɪˈkriːʃn] nsecrezione f


(siˈkriːt) verb
1. (of a gland or similar organ of the body) to separate (a fluid) from the blood, store it, and give it out. The liver secretes bile.
2. to hide. He secreted the money under his mattress.
seˈcretion (-ʃən) noun
1. the process of secreting a fluid.
2. a substance produced by this process. Saliva and urine are secretions.


n. secreta, sustancia segregada por una célula, tejido u órgano.


n secreción f