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The Collaborative International Dictionary

Adrenal \Ad*re"nal\, a. [Pref. ad- + renal.] (Anat.) Suprarenal.

Douglas Harper's Etymology Dictionary

"of or near the kidneys," 1866, Modern Latin, from ad- + renalis "of the kidneys," from Latin renes "kidneys." Adrenal gland is from 1875.


a. 1 Pertaining to the adrenal glands or their secretions. 2 Near the kidneys. n. An adrenal gland.

  1. adj. of or pertaining to the adrenal glands or their secretions

  2. near the kidneys


n. either of a pair of complex endocrine glands situated near the kidney [syn: adrenal gland, suprarenal gland]


Usage examples of "adrenal".

The outer portion of the adrenal glands, which makes up about nine tenths of the mass of the organs is the adrenal cortex.

As long ago as 1895 it was known that extracts of the adrenal glands had a powerful action in raising the blood pressure.

If there was any doubt that the adrenal cortex is essential to life, this was banished as a result of animal experimentation.

By 1940 more than two dozen different crystalline compounds had been prepared from the adrenal cortex.

The adrenal cortex is rich in cholesterol, richer than any other organ but the brain.

The formula of one steroid produced by the adrenal cortex is presented schematically on page 78, with each of the 21 carbon atoms marked off by number.

The various corticoids, singly and together, could be used in cases of adrenal cortical failure much as insulin is used in diabetes.

In 1930 it was noticed that in animals from which the pituitary was removed, fhe adrenal cortex shriveled.

At least under stress the cholesterol content of the adrenal cortex falls, signifying that corticoids are being manufactured rapidly to meet the situation.

Even if the adrenal cortex is still in working condition, nothing happens.

That gland, the adrenal cortex, also produces sex hormones, and especially androgens.

The sympathetic system, and the adrenal medulla, too, are not necessary for life, except insofar as failure to react properly to an emergency may be fatal.

The adrenal medulla can be removed and sympathetic nerves can be cut without fatal results.

Now the adrenal glands serve a vital functional purpose, necessary to the health of the normal man.

It was discovered that they had slightly different adrenal glands than normal persons.