Antiestrogens

Part of speech: noun

Definitions

1. A group of chemicals that disrupt the action of estrogens within the body and are often applied in medical therapies
2. Compounds that interfere with estrogen hormone activity in the body to reduce or prevent its biological effects
3. Agents that inhibit the influence of estrogen, often used to manage diseases sensitive to this hormone

Etymology: Antiestrogens are a plural form of "antiestrogen", so the story belongs to the singular. The word is a plain compound: the Greek prefix "anti-", meaning "against", attached to "estrogen". That makes it a term built on purpose from existing parts rather than a word that drifted into use. The second half, "estrogen", is itself a modern coinage assembled from Greek. Its core is "oestrus", a Greek word for a gadfly-driven frenzy, which came to describe the periodic urge of female animals to mate, borrowed into Latin and then English as "estrus". The sense of heat or frenzy was the original image, and it was attached to the hormone that drives that cycle. The ending "-gen" comes from Greek "-genēs", meaning "producing" or "born of", so "estrogen" means something like "producer of estrus." Put together, an antiestrogen is a substance that works against that hormone's effects, blocking its action in the body. The word follows the pattern of earlier scientific compounds in which a familiar Greek prefix sits in front of a newly named chemical.