diffract
UK[dɪˈfrækt]US[dɪˈfrækt]
v
To cause light, sound, or other waves to spread out and bend when they pass through an opening or around an obstacle.
Morpheme Breakdown
dif
fract
dif
apart
fract
break
Etymology
The word 'diffract' is a modern scientific term built directly from classical Latin components. It combines the prefix 'dif-' (a form of 'dis-', meaning 'apart') with the root 'fract' (from 'frangere', 'to break'). The literal sense is "to break apart." This etymology perfectly captures the physical phenomenon: when a wave encounters an obstacle, its wavefront is effectively "broken apart" into separate segments that then spread out. The term was adopted into English in the early 17th century from the past participle of the Latin verb 'diffringere', which itself means 'to break apart', solidifying the conceptual link between the act of breaking and the bending of waves.
Analysis
Structure: dif (apart) + fract (break)
- dif: A variant of the Latin prefix 'dis-', meaning 'apart', 'away', or 'asunder'.
- fract: From the Latin root 'fractus', meaning 'broken', the past participle of 'frangere' (to break).
Examples
A prism will diffract white light into a spectrum of colors.
Scientists use a grating to diffract X-rays for analysis.
The sound waves diffract around the corner, allowing us to hear it.