Hypernyms (thermometer is a kind of...): measuring device; measuring instrument; measuring system (instrument that shows the extent or amount or quantity or degree of something) Meronyms (parts of thermometer):
Noun. 1. hormone-the secretion of an endocrine gland that is transmitted by the blood to the tissue on which it has a specific effect. endocrine, internal secretion. secretion-a functionally specialized substance (especially one that is not a waste) released from a gland or cell.
LINK / CITE ADD TO WORD LIST. noun. The definition of a hormone is a substance formed in an organ or tissue in the body of a plant or animal and then transported by body fluid to another organ or tissue for a specific action.An example of a hormone is estrogen in humans. substance, usually a peptide or steroid, produced by one tissue and conveyed by the bloodstream to another to effect physiological activity, such as growth or metabolism. b. A synthetic compound that acts like a hormone in the body.