反はん射しゃ

は

ん

しゃ

Common wordJLPTN1Freq.FrequencyTop 10,000

反射する · noun or participle which takes 'suru'

Meanings

Physics term for the reflection of light, sound, or other waves. Also used figuratively for something that reflects or echoes.

reflex

Physiological term for an involuntary response to a stimulus, such as a knee-jerk reflex.

〈物もの〉が光ひかりを反はん射しゃするfor something to reflect light
鏡かがみが太たい陽ようの光ひかりを反はん射しゃしている。
The mirror is reflecting the sunlight.
反はん射しゃ的てきに〈動どう詞し〉to do something reflexively, without thinking
熱あついお湯ゆに触ふれて反はん射しゃ的てきに手てを引ひいた。
I reflexively pulled my hand back when I touched the hot water.
〈物もの〉が〈物もの〉に反はん射しゃするfor something to reflect off of something
音おとが壁かべに反はん射しゃして聞きこえた。
The sound reflected off the wall and could be heard.
反はん射しゃを起おこすto trigger a reflex
医い師しが膝ひざを叩たたいて反はん射しゃを起おこした。
The doctor tapped the knee to trigger a reflex.

反はん響きょうN1sense 1
反響 refers specifically to the echo or reverberation of sound (or a public reaction), while 反射 is the broader term covering the reflection of light, sound, or other waves.
反はん応のうN2sense 2
反応 is the general word for any response to a stimulus, whereas 反射 specifically means an involuntary, automatic response like a reflex.
映うつるN2
反射する is the technical term for light physically bouncing off a surface, while 映る is the everyday word for an image appearing in a mirror, water, or screen.
照てり返かえすN1
反射する is the general, neutral term for reflecting light, sound, or waves, while 照り返す specifically evokes a strong, glaring reflection of light or heat off a surface.

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反はん映えいN2
反射 is the everyday word for direct physical reflection of light, sound, or heat (and also reflexes), while 反映 is more often used for figurative reflection or applying changes.
映うつすN2
反射する describes the physical reflection of light or waves in scientific terms, while 映す is used more broadly and commonly for reflecting images in mirrors or water and for projecting images onto screens.

吸きゅう収しゅうN3sense 1
吸収 means absorption of light or sound, the opposite of 反射, which means it bounces back off a surface.
透とう過か
反射 describes light or waves bouncing off a surface, the opposite of 透過, in which they pass through it.

屈くっ折せつN1sense 1
屈折 is refraction, where light bends as it passes through a medium, while 反射 is reflection, where light bounces off a surface; learners often mix up the two optical terms.
照しょう射しゃ
反射 refers to light or waves bouncing back off a surface, while 照射 refers to light or radiation being sent onto a target in the first place.
反はん発ぱつN1
反射 refers to a reflex or optical/physical reflection, while 反発 refers to pushing back or rebounding with force; the two share the kanji 反 but describe different phenomena.

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反はん射しゃ的てきN1
反射 is the noun for 'reflection/reflex' itself, while 反射的 is the na-adjective describing an action as reflexive or automatic.
射しゃ出しゅつ
反射 means reflection (of light, sound, or a reflex reaction) and shares the kanji 射 with 射出, but the two describe opposite physical processes—bouncing back versus sending out.
ミラー
反射 means the act or phenomenon of reflection itself, whereas ミラー is the physical object that reflects light.

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From 反 (return, opposite) + 射 (shoot, emit). The combination conveys the idea of something being sent back or bounced off a surface.