How to say "estrogen" in Japanese

Choosing the right word
  • nounThe default word for estrogen in virtually any context, from everyday health talk to medicine; being the common loanword, this is the one to reach for unless you have a specific reason otherwise.
  • 発情ホルモンはつじょうホルモン
    nounA less common alternative name, literally 'estrus hormone', reflecting the hormone's link to the heat period of animals; for estrogen itself エストロゲン is the word you want, so this is seldom the right choice.
  • 卵胞ホルモンらんぽうホルモン
    nounLiterally 'ovarian follicle hormone', this is the term you meet in medical and pharmaceutical writing; in ordinary conversation and general writing エストロゲン is what you will hear instead.

Use 「エストロゲン」 as the default in almost any context; 「卵胞ホルモン」 turns up mainly in medical and pharmaceutical writing, and 「発情ホルモン」 is a less common alternative name you will seldom need.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

Japanese equivalents

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