Crossword clues for secretion
Longman Dictionary of Contemporary English
The Collaborative International Dictionary
Secretion \Se*cre"tion\, n. [L. secretio: cf. F. s['e]cr['e]tion.]
The act of secreting or concealing; as, the secretion of dutiable goods.
(Physiol.) The act of secreting; the process by which material is separated from the blood through the agency of the cells of the various glands and elaborated by the cells into new substances so as to form the various secretions, as the saliva, bile, and other digestive fluids. The process varies in the different glands, and hence are formed the various secretions.
(Physiol.) Any substance or fluid secreted, or elaborated and emitted, as the gastric juice.
Douglas Harper's Etymology Dictionary
1640s, "act of secreting;" 1732, "that which is secreted," from French sécrétion, from Latin secretionem (nominative secretio) "a dividing, separation," noun of action from past participle stem of secernere "to separate, set apart" (see secret (n.)).
Etymology 1 n. 1 (label en countable) any substance that is secreted by an organism 2 (label en uncountable) the act of secreting a substance, especially from a gland Etymology 2
n. the act of hiding something
n. the organic process of synthesizing and releasing some substance [syn: secernment]
a functionally specialized substance (especially one that is not a waste) released from a gland or cell
Secretion is the movement of material from one point to another chemicals, or a secreted chemical substance from a cell or gland. In contrast to excretion, it is the removal of certain substances or waste products. The classical mechanism of cell secretion is via secretory portals at the cell plasma membrane called porosomes. Porosomes are permanent cup-shaped lipoprotein structure at the cell plasma membrane, where secretory vesicles transiently dock and fuse to release intra-vesicular contents from the cell.
Secretion in bacterial species means the transport or translocation of effector molecules for example: proteins, enzymes or toxins (such as cholera toxin in pathogenic bacteria for example Vibrio cholerae) from across the interior ( cytoplasm or cytosol) of a bacterial cell to its exterior. Secretion is a very important mechanism in bacterial functioning and operation in their natural surrounding environment for adaptation and survival.
Usage examples of "secretion".
But when this period arrives and the menstrual discharge takes place into the vagina, the female will suffer from the retention and accumulation of this secretion, and ultimately a tumor or a protrusion of the membrane which closes the vagina will occur, giving rise to severe pain and other serious symptoms.
The secretion of acetylcholine alters the properties of the muscle cell membrane, brings about the influx of sodium ion, and, in short, initiates a wave of depolarization just like that which takes place in a nerve cell.
Golden mentions two cases in which the application of belladonna ointment to the breasts caused suppression of the secretion of milk.
Expectorants are medicines which modify the character of the secretions of the bronchial tubes, and promote their discharge.
An everyday sleepskin would have absorbed the secretions of his skin as easily as it absorbed all other excreta, then turned him out perfectly fresh, but the suit he had been using had only the most elementary provision of that kind.
These faculties impart tone to the system, sustain the processes of nutrition, circulation, assimilation, secretion and excretion, and their distinguishing characteristics are vigor, tension, and elasticity.
For instance, the rate of salivary secretion is controlled by certain cells in the upper medulla and the lower pons.
Probably the most interesting of all these anomalies is the class in which, by a compensatory process, metastasis of the secretions is noticed.
A secretion is thought of as being designed to serve a useful purpose, as, for instance, is true of the pancreatic juice.
The secretin enters the bloodstream and stimulates the production of pancreatic secretion.
Here it encounters the intestinal juice, pancreatic juice, and the bile, the secretion of all of which is stimulated by the presence of food in the alimentary tract.
Its secretion, the pancreatic juice, is emptied into the duodenum by a duct which, as a rule, unites with the duct from the liver.
I think therefore that we may assume that these yield back a very fluid secretion, which is regurgitated, as before suggested, into the pharyngeal pouch, to be withdrawn as required.
Undoubtedly the occasional news reports of increased milk production by dairy cattle when soft music is played in the stalls is due to the stimulation of prolactin secretion by any environmental factor that brings on a sensation of well-being and freedom from insecurity.
An elephant distressed by a long march in the heat of the sun withdraws several quarts of water, but that it is water, and not a secretion produced by salivatory glands, is not I think sufficiently evident.