From Longman Dictionary of Contemporary EnglishRelated topics: Opticsreflectionre‧flec‧tion /rɪˈflekʃən/●くろまる●くろまる○しろまるW3 noun1[countable]HPO an image that you can see in a mirror, glass, or waterCan you see your reflection in the glass?2[countable, uncountable]IDEAcareful thought, or an idea or opinionbased on thisA moment’s reflection will show the stupidity of this argument.on/upon reflectionAt first I disagreed, but on reflection (=after thinking carefully about it), I realized she was right.3[countable]SHOW/BE A SIGN OF something that shows what something else is like, or that is a sign of a particular situationreflection ofHis speech was an accurate reflection of the public mood.be a reflection on somebody/something (=show how good or bad someone or something is)On some level, a student’s grades are a reflection on the teacher.4[uncountable]REFLECT the action or process of light, heat, or sound being thrown back from a surfaceCOLLOCATIONS – Meaning 3: something that shows what something else is like, or that is a sign of a particular situationadjectivesan accurate/true reflectionThese reports were not an accurate reflection of existing attitudes.a fair reflection (=reasonable and right)The score was 4 – 1, which was a fair reflection of the difference between the sides.a direct reflectionThe child’s behaviour is a direct reflection of its parents' behaviour.a sad reflectionThis situation is a sad reflection on society.a pale reflection (=similar to, but not as good as, something else)The film is only a pale reflection of the book.Examples from the Corpusreflection• The contrasting images which survive of Osred are probably a reflection of the increasing divisions within the Northumbrian kingdom at this time.• a reflection of the moon on the surface of the lake• It is not just an automaticreflection of gender.• Many working women have little time for reflection.• Whether they liked him or not, Johnson was an awfully good reflection on them.• Anna stood looking at her reflection in the mirror.• A third way, called an endoscope, uses the principle of totalinternalreflection which we saw in the demonstration.• Methods of controllingexpenses are a merereflection of the levels of trust in an organization.• I could see my reflection in his glasses.• The full bright moon and the reflection of the snow made a mockery of the night.• the reflection of the moon on the surface of the lakeA moment’s reflection• What would be the consequence of that? A moment's reflection will show that it would make private members more independent.reflection of• The amount you tip should be a reflection of the kind of service you got.