Longman Dictionary of Contemporary English homepage

Date: 1400-1500
Language: Latin
Origin: detectus, past participle of detegere 'to uncover'

detect

verb
     
de‧tect W3 [transitive]
to notice or discover something, especially something that is not easy to see, hear etc:
Many forms of cancer can be cured if detected early.
detect a change/difference
Dan detected a change in her mood.
detect a note of sarcasm/irony/excitement etc
Do I detect a note of sarcasm in your voice?
detectable adjective

Dictionary pictures of the day
Do you know what each of these is called?
What is the word for picture 1? What is the word for picture 2? What is the word for picture 3? What is the word for picture 4?
Click on any of the pictures above to find out what it is called.

Explore our topic dictionary