reflection

nouns

a calm, lengthy, intent consideration
contemplation, musing, reflection, reflexion, rumination, thoughtfulness
the phenomenon of a propagating wave (light or sound) being thrown back from a surface
reflection, reflexion
expression without words
"tears are an expression of grief"; "the pulse is a reflection of the heart's condition"
expression, manifestation, reflection, reflexion
a likeness in which left and right are reversed
mirror image, reflection, reflexion
the image of something as reflected by a mirror (or other reflective material)
"he studied his reflection in the mirror"
reflection, reflexion
(mathematics) a transformation in which the direction of one axis is reversed
reflection
domain category
a science (or group of related sciences) dealing with the logic of quantity and shape and arrangement
math, mathematics, maths
is a type of (narrower)
(mathematics) a function that changes the position or direction of the axes of a coordinate system
transformation
a remark expressing careful consideration
observation, reflection, reflexion
the ability to reflect beams or rays
reflection, reflectivity, reflexion