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.
Define invasive. invasive synonyms, invasive pronunciation, invasive translation, English dictionary definition of invasive. adj. 1. Of, engaging in, or given to armed aggression: an invasive military force. 2. a. Of or relating to a disease or condition that has a tendency to...