пречупвам се означава в английски

diffract [diffracted, diffracting, diffracts]▼(intransitive)
verb
[UK: dɪ.ˈfrækt] [US: də.ˈfrækt]

refract [refracted, refracting, refracts]▼(to change direction)
verb
[UK: rɪ.ˈfrækt] [US: rɪ.ˈfrækt]