insulin

insulin — noun

1. a natural chemical made inside the body that moves sugar out of the bloodstream

1.名詞B2
釋義

a natural chemical made inside the body that moves sugar out of the bloodstream and into cells, where it can be used for energy; also, an artificially produced form of this substance that is used as medicine when the pancreas itself does not supply enough

例句

Imran needs to inject insulin every morning to manage his diabetes.

collocation: inject insulin

After a heavy meal, the pancreas releases a burst of insulin into the blood.

collocation: release insulin

同義詞
  • hormone

    much broader category; insulin is one specific type of hormone among many

  • blood-glucose regulator

    descriptive phrase rather than a true synonym; explains the function of insulin

反義詞
  • glucagon

    raises blood sugar by triggering the liver to release stored glucose, performing the opposite role of insulin

文法句型

insulin + noun (as modifier)

uncountable — no plural except when referring to types

常見錯誤

❌My grandfather takes insulin pills every day.
✅My grandfather injects insulin every day.
💡Insulin cannot be taken as an oral pill because digestive enzymes break it down before it reaches the bloodstream; it must be injected or delivered via a pump.