detection

/dɪˈtekʃn/ (bre, ipa) · /dɪˈtekʃn/ (ame, ipa) · /di-ˈtek-shən/ (ame, mw)

detection — noun

1. the process or act of finding something that was hidden, not obvious, or difficu

1.名詞B2
釋義

the process or act of finding something that was hidden, not obvious, or difficult to see, often by using special equipment or careful observation

例句

Early detection of the disease greatly improves the chances of recovery.

collocation: early detection of [disease/cancer/infection]

The smoke alarm's detection of the fire saved the family from harm.

同義詞
  • discovery

    can be accidental or deliberate; detection implies a targeted search for what is hidden

  • identification

    focuses on determining the exact nature of something already noticed

  • recognition

    emphasises realising something is present, not necessarily through active search

反義詞

文法句型

detection of + noun phrase

用法筆記

Uncountable — cannot be used with 'a/an' or in plural form. Frequently appears in scientific, medical, and technical contexts. The pattern 'detection of + noun' is standard.

常見錯誤

❌The scientist made an important detection about the stars.
✅The scientist made an important discovery about the stars.
💡'detection' refers to finding something hidden or hard to see, not to uncovering something new and unknown.

2. the process by which the police find information about crimes and identify the p

2.名詞B2
釋義

the process by which the police find information about crimes and identify the people who carried them out

例句

Modern forensic science has greatly improved crime detection rates worldwide.

collocation: crime detection rate

Liam's quick detection of the forged signature helped the police solve the case.

同義詞
  • investigation

    broader term covering the entire process; detection focuses on the moment of finding evidence

  • solving

    less formal, usually refers to cracking a case rather than finding clues

反義詞
  • concealment

    the act of hiding evidence or crime from the authorities

文法句型

detection of + crime-related noun phrase

用法筆記

Uncountable. Often modifies other nouns in compound noun phrases: 'crime detection', 'detection rate', 'detection unit'. The subject performing the detection is typically the police, a detective, or a police department.

常見錯誤

❌The police made a detection of the thief hiding in the building.
✅The police detected the thief hiding in the building.
💡'detection' is uncountable and not used with 'a' or in a personal-action frame.