E2

A form of estradiol — A natural estrogenic hormone that is a phenolic alcohol estra-1,3,5-triene-3,17-diol (C₁₈H₂₄O₂) secreted chiefly by the ovaries of all vertebrates, that is a major and the most potent of the naturally occurring estrogens; the semisynthetic esterified compound is used medicinally to treat estrogen deficiency and breast cancer.

Ask AI about this wordChatGPTClaudePerplexityGoogle AIGrok

Meanings

nounE2 (uncountable)
  1. abbreviationuncountableAbbreviation of estradiol.
Cite this entry
APA

E2. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/E2

MLA

“E2.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/E2. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “E2,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/E2.

Source: E2 on Wiktionary, CC BY-SA 4.0.