This was the first time in physiology that the idea of an internal secretion was advanced.
That material, whatever it may be, is termed an "internal secretion."
When the function of ovulation ceases the body has to find a new way to dispose of the internal secretion of the ovary.
The loss of the internal secretion of these glands may produce physical and mental changes in the individual.
Third, it is that internal secretion that excites in woman sexual desire and makes her enjoy relations with the male sex.
It is generally believed that the internal secretion of the thyroid and the adrenal are antagonistic.
The matter is altogether a problem of chemistry, with the necessity for a new adjustment among the glands of internal secretion.
The external secretion is what is called the mind and the internal secretion is known as the soul.
We must then look upon the internal secretion as composed of the liquid elements of the testicular secretion.
The best example that can be cited of the effect of this internal secretion is the male of the horse kind.
internal secretion n.
A secretion that is produced by an endocrine gland and discharged directly into the bloodstream; a hormone.