reflection
reflect + -ion
https://gyazo.com/cb33c0ca1c81f53d31bf329e0e4715aa
source: MRW I'm waiting for someone and I see a reflection of myself - GIF on Imgur
noun
1. the throwing back by a body or surface of light, heat, or sound without absorbing it:
(光･熱･音などの)反射, 反響
e.g. the reflection of light.
an amount of light, heat, or sound that is reflected by a body or surface:
反射光, 熱
e.g. the reflections from the streetlights gave us just enough light.
an image seen in a mirror or shiny surface:
(鏡や水面などに映る)映像, 姿
e.g. Marianne surveyed her reflection in the mirror.
a thing that is a consequence of or arises from something else:
反映, 影響, 現れ
e.g. a healthy skin is a reflection of good health in general.
in singular a thing bringing discredit to someone or something:
〖単数形で〗 «…にとっての» 悪いことの現れ; 不名誉(な事), 非難 «on»
e.g. it was a sad reflection on society that because of his affliction he was picked on.
2. serious thought or consideration:
«…についての» 熟慮, 熟考, 考察; 内省
e.g. he doesn't get much time for reflection.
an idea about something, especially one that is written down or expressed:
C｟かたく｠;〖通例～s〗 (熟考の末の)意見, 考え, 感想 «on» .
e.g. reflections on human destiny and art.
3. Mathematics the conceptual operation of inverting a system or event with respect to a plane, each element being transferred perpendicularly through the plane to a point the same distance the other side of it.
ORIGIN
late Middle English: from Old French reflexion or late Latin reflexio(n-), from Latin reflex- ‘bent back’, from the verb reflectere.