estrogen
Translation
oestrogen
Examples
Estrogen is a primary female hormone.
Oestrogen is a primary female hormone.
Grammar Patterns
((noun)) a type of hormone. Estrogen levels can change daily.
Similar Words
Synonyms: female hormone
Etymology
From Greek 'oistros' (frenzy, gadfly) + '-gen' (producing). Literally 'producing frenzy or desire'.
Memory Tips
Note the American spelling is 'estrogen', while the British spelling is 'oestrogen'. Think 'estro-' like 'estrus' (a recurring period of sexual receptivity in female mammals).