An early scientific term for estrogen, the primary female sex hormone that regulates reproductive functions.
From Greek 'oistros' meaning 'gadfly' or 'frenzy', originally used because the hormone was associated with reproductive behavior. The 'es-' prefix variants were used in early biochemistry.
Scientists originally called it 'estrin' thinking it came from the Greek word for 'gadfly'—the idea was that it made female animals frenzied during mating season, which turned out to be surprisingly accurate!
Estrin is a variant/abbreviation of estrogen. Estrogen (from Greek 'oestrus' meaning frenzy/sexual desire) was historically framed as the female hormone governing irrational behavior, medicalizing women's bodies. This language normalized stereotypes about female emotionality.
Use 'estrogen' with clinical precision; acknowledge it is not solely female (present in all bodies) and does not determine behavior or capacity. Avoid linking to personality or competence.
["estrogen","estradiol","hormone"]
Women endocrinologists including Katharina Dalton worked to understand hormones scientifically, but their research was often overshadowed by pop-science narratives blaming women's emotions on 'raging hormones.' Acknowledge rigorous female-led science in this field.
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