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reflection

reflection

1 6.3
A flip of a shape across a line that makes a mirror image
  • noun
  • /rɪˈflɛkʃən/
  • Specialized
translation icon : reflexión
  • In geometry class, we learned that a reflection flips a shape across a line to create its mirror image.

That's called particle antiparticle symmetry or reflection charge, reflection symmetry.

Examples

  • And this was the operation of reflection, a mirror point M.

  • Let me just label them X axis, reflection Y axis.

  • So that was a reflection about the Y axis.

  • Graham states that "surely the second should be a simple reflection of the first."

    Blog text (1)
  • It's not hard to do if you take advantage of symmetries like rotations and reflections.

    Fiction book (2001)
  • In the illustrations at right, the zeroth order (000) reflection corresponds to a constant added to the density, and the phases for the (200) and (300) reflections have been set equal to 0.

    Academic text (2006)
  • Dixon (1995) observed eighth-grade students in a bilingual classroom exploring the geometric concepts of reflection and rotation and also concluded that using computer-based dynamic instruction had a positive effect.

    Academic text (2000)
  • A reflection across the X-axis changes the orientation of the figure while keeping its shape identical.

  • After applying the reflection transformation, the triangle appeared to be mirrored perfectly on the graph.

Synonyms

mirror image
vsreflection
14 3.3

An image that shows left and right switched as in a mirror

is the geometric flip that produces that reversed likeness across a line
mirror symmetry
vsreflection
  • Specialized
1 7.9

A property of a system where left and right are swapped and it stays the same

is an explicit geometric flip that changes positions across a line or plane

Compounds

angle of reflection
  • Specialized
1 5.1

The angle between a reflected light ray and a line at right angles to the surface where it hits

8.2

Part of incoming light or heat that bounces off a surface

reflection factor
  • Specialized
7.4

Part of light that bounces off a surface, like a mirror

sound reflection
  • Specialized
3.8

A bounce of sound you hear again after it hits a surface

9.9

Physical laws do not change when left and right are swapped

Surface Forms

reflection singular
reflections plural

Morphology

reflection = reflect (transparent) = reflect + ion

The noun 'reflection' is transparently derived from the verb 'reflect', indicating the process or result of reflecting.

Etymology

Reflection comes from Latin parts re- 'back' and flect 'bend', and in math it means flipping a shape across a line so it becomes a mirror image. That's why a mathematical reflection changes orientation like looking in a mirror.