optical illusion Meaning in the Cambridge English Dictionary Cambridge dictionaries logo
Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

Meaning of “optical illusion” in the English Dictionary

"optical illusion" in British English

See all translations

optical illusionnoun [C]

uk   /ˌɒp.tɪ.kəl ɪˈluː.ʒən/  us   /ˌɑːp.tɪ.kəl ɪˈluː.ʒən/
(Definition of optical illusion from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)

"optical illusion" in American English

See all translations

optical illusionnoun [C]

 us   /ˈɑp·tɪ·kəl ɪˈlu·ʒən/
something that you think you see, but that is not really there: Some sort of optical illusion makes these things seem to travel faster than they really do.
(Definition of optical illusion from the Cambridge Academic Content Dictionary © Cambridge University Press)
Translations of “optical illusion”
in Chinese (Simplified) 视错觉, 光幻觉…
in Turkish göz yanılması, optik yanılsama…
in Russian оптический обман…
in Chinese (Traditional) 視錯覺, 光幻覺…
in Polish złudzenie optyczne…
What is the pronunciation of optical illusion?
Add Cambridge dictionaries to your browser to your website
A blazing row: words and phrases for arguing and arguments
A blazing row: words and phrases for arguing and arguments
by ,
May 04, 2016
by Kate Woodford We can’t always focus on the positive! This week, we’re looking at the language that is used to refer to arguing and arguments, and the differences in meaning between the various words and phrases. There are several words that suggest that people are arguing about something that is not important. (As you might

Read More 

Word of the Day

spaceship

(especially in stories) a vehicle used for travel in space

Word of the Day

trigger warning noun
trigger warning noun
May 02, 2016
a warning that a subject may trigger unpleasant emotions or memories This is not, I should stress, an argument that trigger warnings should become commonplace on campus.

Read More