antioxidant

IPA/ˌæntiˈɒksɪdənt/
KK[ˌæntiˈɑksədənt]IPA/ˌæntiˈɑːksɪdənt/

antioxidant — 名詞

  • antioxidantsingular
  • antioxidantsplural

1. a substance, often found naturally in foods such as fruit and vegetables, that h

1.名詞B2
釋義

抗氧化劑

減緩氧化、保護細胞的物質

a substance, often found naturally in foods such as fruit and vegetables, that helps prevent a chemical process called oxidation — a reaction that can damage the body's cells, similar to how metal rusts over time

例句

The nutritionist, Amara Okafor, told her patients that leafy greens are packed with natural antioxidants.

營養師 Amara Okafor 告訴她的病人，綠葉蔬菜富含天然抗氧化劑。

collocation: packed with antioxidants

A daily bowl of blueberries provides enough antioxidants to support healthy skin and eyes.

每天吃一碗藍莓，就能攝取足夠的抗氧化劑來維持皮膚和眼睛的健康。

countable usage: provides antioxidants as a general property

同義詞
  • free radical scavenger

    a more technical term used in scientific writing for the same function

  • preservative

    overlaps in the food-storage sense, but preservative is broader and includes synthetic chemicals

反義詞
  • oxidant

    a substance that causes oxidation, the opposite chemical effect

文法句型

antioxidant in [food]

rich in antioxidants

antioxidant-rich [food]

用法筆記

Antioxidant can be used as a countable noun (referring to specific substances, e.g. 'vitamin C and E are antioxidants') or an uncountable mass noun (e.g. 'this fruit is high in antioxidant'). The compound form 'antioxidant-rich' is common in health writing.

常見錯誤

❌I take antioxidant every morning.
✅I take an antioxidant supplement every morning.
💡When used as a countable singular noun, antioxidant usually needs a determiner (a, the, some).
❌Vitamin C is an antioxidant that prevents colds.
✅Vitamin C is an antioxidant that supports the immune system.
💡Vitamin C does not reliably prevent colds; avoid overstating health claims.