endorphin

IPA/enˈdɔːfɪn/
KK[ɛndˈɔrfɪn]IPA/enˈdɔːrfɪn/

endorphin — noun

  • endorphinsingular
  • endorphinsplural

1. A chemical made naturally inside the body that prevents pain signals from travel

1.名詞B2
釋義

A chemical made naturally inside the body that prevents pain signals from traveling through the nerves. When levels rise high enough, it also produces a feeling of well-being or energy.

例句

After her ten-kilometer run, Yasmin felt a rush of endorphins that left her deeply relaxed.

rush of endorphins — common collocation for sudden release

The body produces endorphins during intense physical activity to help block pain signals.

同義詞
  • natural painkiller

    less technical, describes the function rather than the chemical identity

  • feel-good chemical

    informal and non-technical; used in popular media and casual conversation

文法句型

endorphins — plural when referring to general effects

用法筆記

In everyday writing and speech, the plural form 'endorphins' is far more common than the singular. Use the singular mainly when referring to the substance in a technical or generic sense (e.g., 'Endorphin is a type of neuropeptide.').

常見錯誤

❌Running makes my body produce endorphin.
✅Running makes my body produce endorphins.
💡Endorphins are almost always referred to in the plural when talking about general effects.