digestion

digestion — noun

1. the natural process inside your stomach and intestines that breaks down food int

1.名詞B2
釋義

the natural process inside your stomach and intestines that breaks down food into simple substances your body can use for energy, growth, and cell repair.

例句

Aoi's digestion improved after she started eating more vegetables and whole grains.

possession + digestion + verb of change (improved)

A cup of ginger tea often helps Eli's digestion after a heavy evening meal.

helps + digestion

同義詞
  • breakdown

    More general; can refer to any process of separating into parts, not limited to the body

  • processing

    Broader and more technical; used in biology and computing, not common in everyday health talk

反義詞
  • indigestion

    The condition when digestion does not work well, causing stomach pain or discomfort

文法句型

digestion + verb (improves, slows down)

possessive + digestion

adjective + digestion (good, poor, slow)

用法筆記

Uncountable — do not say 'a digestion.' Use 'digestion problems' or 'digestive issues' to refer to a specific condition. Frequently appears with verbs like 'aid,' 'promote,' 'slow down,' or 'improve.'

常見錯誤

❌I have a good digestion.
✅I have good digestion.
💡Digestion is uncountable; never use 'a' before it.
❌My digestion of dinner was slow.
✅After dinner, my digestion was slow.
💡Avoid using 'digestion' with 'of' to mean a single instance of digesting a specific meal.

2. the process in which bacteria, chemical reactions, or high temperatures break do

2.名詞C1
釋義

the process in which bacteria, chemical reactions, or high temperatures break down dead organic material, such as food waste or sewage sludge, into simpler substances, often to produce energy or reduce waste volume.

例句

The sewage treatment plant uses anaerobic digestion to break down solid waste.

anaerobic digestion (common technical collocation)

Kitchen scraps can be turned into energy through bacterial digestion in special tanks.

bacterial digestion

同義詞
  • decomposition

    Broader term for any natural breakdown of organic matter, not necessarily human-engineered

  • breakdown

    More general and less technical; can describe any chemical or biological splitting of materials

  • processing

    Emphasises the engineered, industrial nature of the operation

文法句型

adjective + digestion (anaerobic, bacterial)

digestion + of + noun

digestion + noun (method, process, system)

用法筆記

Used mainly in environmental engineering, waste management, and industrial chemistry contexts. 'Anaerobic digestion' is a very common fixed term — it describes a bacteria-driven process that happens without oxygen and produces biogas such as methane.

常見錯誤

❌Anaerobic digestion is a type of food digestion.
✅Anaerobic digestion is a waste-treatment process that uses bacteria to break down organic matter.
💡These two senses are completely different; do not confuse the biological and industrial meanings.