oestrogen

IPA/ˈiːstrədʒən/
IPA/ˈestrədʒən/

oestrogen — noun

1. a natural chemical found in the bodies of women and female animals that controls

1.名詞B2
釋義

a natural chemical found in the bodies of women and female animals that controls how female physical features form and how the reproductive system works

例句

Amihan's doctor said her oestrogen levels were lower than normal for her age.

collocation: oestrogen levels

Hormone replacement therapy gives women oestrogen after their bodies stop producing it naturally.

collocation: gives women oestrogen

同義詞
  • estrogen

    American English spelling of the same word

  • female sex hormone

    a less technical, more general way to refer to oestrogen; not precise in medical contexts

反義詞
  • testosterone

    the main male sex hormone, produced in much smaller amounts in female bodies

文法句型

uncountable — no plural form

often used with 'level', 'production', 'replacement', 'therapy'

用法筆記

British spelling; the American spelling is estrogen. Always uncountable — do not use with 'a' or 'an', and do not add a plural '-s'.

常見錯誤

❌She needs more oestrogens in her diet.
✅She needs more oestrogen in her diet.
💡Oestrogen is an uncountable noun and does not have a plural form.
❌Oestrogen and progesterone are the same thing.
✅Oestrogen and progesterone are two different hormones that work together in the female body.
💡Oestrogen and progesterone have distinct functions in the reproductive system.