A light wave is a type of electromagnetic wave. Light waves on the electromagnetic spectrum include those that are visible as well as those that are invisible to the human eye.
invade, occupy(verb) march aggressively into another's territory by military force for the purposes of conquest and occupation. Synonyms: lodge in, invade, occupy, encroach upon, engross, obtrude upon, intrude on, busy, worry, absorb, engage, reside, concern, overrun, fill, infest, interest, take, use up.
Synonyms and related words. To arrive in a place, or to enter a place:arrive, enter, reach... Explore Thesaurus. a. to spread to a part of the body and cause damage there The infected cells can invade healthy tissue. Synonyms and related words. To have or develop an illness or symptom:suffer, get, contract...