Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “reflection”

reflection

noun  /rɪˈflek·ʃən/ us  

reflection noun (SHOW)

[C] something that shows, expresses, or is a sign of something: Their finely decorated home is a reflection of their good taste. The team’s losses of late seem to be a reflection on the coaching.

reflection noun (SEND BACK)

physics [C/U] the return of light, heat, sound, or energy from a surface [C/U] A reflection is also an image seen in a mirror or other shiny surface: Standing on the dock, we could see the reflection of the sky in the still water. angle of reflection physics The angle of reflection is the angle that a beam of light or other energy that is reflected from a surface makes with a line vertical to that surface.

reflection noun (THINKING)

[C/U] careful thoughts: [C] Her reflections on life are recorded in her journal. [U] After much reflection, he decided to return to teaching.
(Definition of reflection from the Cambridge Academic Content Dictionary © Cambridge University Press)
What is the pronunciation of reflection?
Add Cambridge dictionaries to your browser to your website

More American English definitions for “reflection”

Definitions of “reflection” in other dictionaries

Word of the Day

mutant

an organism that is different from others of its type because of a permanent change in its genes

Word of the Day

What’s that lovely smell?

by Kate Woodford,
October 29, 2014
As adult humans, we can distinguish about 10,000 different smells. It’s no wonder, then, that we have so many words and expressions to describe them. This week we’re taking a look at those smell words – words that describe good smells and words that describe bad smells. Most smell words are either

Read More 

high-frequency trading noun

October 27, 2014
a type of stock market trading that uses very complex technology to trade extremely quickly, often making tiny profits which nevertheless add up to substantial sums Lewis’s book, Flash Boys, is driving a huge amount of attention toward the topic of high frequency trading, and it has rekindled some of

Read More