\hˈɔːmə͡ʊn], \hˈɔːməʊn], \h_ˈɔː_m_əʊ_n]\
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By Princeton University
By Oddity Software
By Noah Webster.
Chemical substances having a specific regulatory effect on the activity of a certain organ or organs. The term was originally applied to substances secreted by various endocrine glands and transported in the bloodstream to the target organs. It is sometimes extended to include those substances that are not produced by the endocrine glands but that have similar effects.
By DataStellar Co., Ltd
A chemical substance, formed in one organ or part of the body and carried in the blood to another organ or part which it stimulates to functional activity or secretion; the secretions of some or all of the ductless glands are regarded as hormones, so is secretin, so is carbon dioxide formed in muscle during contraction, which incites the respiratory center to increased activity; opposed to chalone; see also autacoid.
By Stedman, Thomas Lathrop
Word of the day
- A substance formed by nitric and sulphuric acids cane-sugar; its action on the circulation is similar to that of nitroglycerin.