► Opticsdiffract, verbeyepiece, nounfocal point, nounfocus, verbmagnification, nounmirage, nounoptic, adjectiveoptical, adjectiveoptical illusion, nounoptics, nounprism, nounprismatic, adjectivereflection, nounreflective, adjectivespectrum, nounultraviolet, adjective