estrone
/ˈɛˌstɹoʊn/
Word Rarity
Very rare
Frequency: 1.85 in modern English
7
Scrabble Score
7
Letters
2
Syllables
6
Unique Chars
Meaning
noun
A natural estrogenic hormone that is a ketone C₁₈H₂₂O₂ found in the body chiefly as a metabolite of and less potent than estradiol, that is also secreted especially by the ovaries, and that is used to treat various conditions (such as ovarian failure and menopausal symptoms) relating to estrogen deficiency.
American usage; Countable; Uncountable
Etymology
Etymology tree Proto-Indo-European *h₁eysh₂-der. Ancient Greek οἶστρος (oîstros)der. Latin oestrusbor. English estrus Ancient Greek -ο- (-o-)der. Latin -o-bor. English -o- English estro- English estr- German Ketonbor. English ketone English -one English estrone From estr- + -one.
Regional Pronunciation
- American English: /ˈɛˌstɹoʊn/
Usage
- American usage
- Countable
- Uncountable