menstruation

/ˌmenstruˈeɪʃn/ (bre, ipa) · /ˌmenstruˈeɪʃn/ (ame, ipa) · /ˌmen(t)-strü-ˈwā-shən men-ˈstrā-/ (ame, mw)

menstruation — noun

1. the natural process by which a non-pregnant woman's body releases blood from the

1.名詞B2
釋義

the natural process by which a non-pregnant woman's body releases blood from the womb through the vagina, usually once each month, between puberty and around age fifty.

例句

Many girls begin menstruation between the ages of ten and fifteen.

typical subject: 'girls/women begin menstruation'

Kemi missed two days of school each month because menstruation gave her stomach pain.

collocation: 'menstruation + pain / cramps'

同義詞
  • period

    everyday term; countable ('her period', 'three periods'); preferred in casual speech.

  • menses

    medical/technical; treated as plural ('menses are regular'); used in clinical reports.

  • monthly cycle

    polite, indirect; common in older or more formal writing.

文法句型

uncountable noun

用法筆記

Uncountable; never used with 'a' or in the plural. The verb form is 'menstruate' and the adjective is 'menstrual' (as in 'menstrual cycle', 'menstrual pain'), which collocates far more often than the noun itself in everyday speech.

常見錯誤

❌She had a menstruation last week.
✅She had her period last week.
💡'menstruation' is uncountable; learners often want the everyday word 'period' for a single occurrence.
❌menstruations are painful
✅menstruation is painful' / 'periods are painful
💡no plural form; use 'periods' if you want a count noun.