(くっせつ)

くっせつ
noun, suru verb
refraction; distortion; complexity
1. refraction (of light)
the bending of light waves as they pass from one medium to another
(ひかり)(みず)(はい)ると屈折(くっせつ)する。
Light refracts when it enters water.
プリズムは(ひかり)屈折(くっせつ)させて(にじ)(つく)る。
A prism refracts light to create a rainbow.
眼鏡(めがね)のレンズは(ひかり)屈折(くっせつ)利用(りよう)している。
Eyeglass lenses use the refraction of light.
2. distortion; complexity; twisted feelings
a complicated or warped state of mind or emotions
(かれ)(こころ)には屈折(くっせつ)がある。
There's a complexity in his heart.
屈折(くっせつ)した性格(せいかく)()(ぬし)だ。
He has a twisted personality.
家庭環境(かていかんきょう)彼女(かのじょ)(こころ)屈折(くっせつ)()んだ。
Her home environment created emotional complexity in her heart.

FORMATION:
(くつ) (bend) + (せつ) (break, bend) → bending

VERB FORM:
屈折(くっせつ)する (to refract; to become twisted/complex)

SCIENTIFIC TERMS:

  • 屈折(くっせつ)(りつ) (refractive index)
  • 屈折(くっせつ)(かく) (angle of refraction)

RELATED WORDS:

  • 反射(はんしゃ) (reflection)
  • 透過(とうか) (transmission)
  • (ゆが)み (distortion)

NUANCE:
The psychological sense often implies someone whose emotions or thinking have been negatively affected by experiences, leading to complicated or warped perspectives.