[ noun ] (biology,medicine) the organic process of synthesizing and releasing some substance
Used in print(Jacob Robbins et al., "The thyroid-stimulating...)
Since the circulating thyroid_hormones are the amino_acids thyroxine and tri-iodothyronine ( cf. Section C ) , it is clear that some mechanism must exist in the thyroid_gland for their release from proteins before secretion .
This appears to result from both a reduced amount of the iodine substrate and a more rapid secretion of newly iodinated thyroglobulin .(E. Gellhorn, "Prolegomena to a theory of the emotions"...)
The pain became thus the symbol for food and elicited salivary secretion ( conditioned_reflex ) .
[ noun ] (biology) a functionally specialized substance (especially one that is not a waste) released from a gland or cell
Used in print(E. Gellhorn, "Prolegomena to a theory of the emotions"...)
Physiological experiments and clinical observations have shown that these procedures influence the hypothalamically controlled hypophyseal secretions and increase sympathetic discharges .