say it: ri-FLEK-shuhn
reflection is a noun meaning "a calm, lengthy, intent consideration". It carries 8 recorded senses.
a calm, lengthy, intent consideration
the phenomenon of a propagating wave (light or sound) being thrown back from a surface
expression without words
“tears are an expression of grief”
“the pulse is a reflection of the heart's condition”
a likeness in which left and right are reversed
(mathematics) a transformation in which the direction of one axis is reversed
mathematics
a remark expressing careful consideration
the ability to reflect beams or rays
Forms marked · are formed by the regular rule rather than recorded in the source data. English keeps a few hundred irregulars and the rest follow the pattern, so the rule is right far more often than not — but it is a rule, and the mark says so.
Definitions, synonyms and semantic relations for reflection come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.