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.
eÂ·limâ²iÂ·naâ²tor n. Synonyms: eliminate, eradicate, extirpate. These verbs mean to nullify someone as a factor or cause an activity or condition to come to an end, especially by using drastic methods: eliminated all opposition; eradicate guerrilla activity; policies that attempt to extirpate drug abuse.