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.
     signals to the brain stimulate release of an anterior pituitary  tropic hormone. The tropic hormone then acts on its target  endocrine tissue, stimulating secretion of a hormone that exerts  systemic metabolic or developmental effects.