Home › Words › C › counterviruscounterviruscountervirus · noun — A computer virus engineered to combat another specific computer virus.Definition from Wiktionary (CC BY-SA 3.0).EtymologyFrom counter- + virus.nounA computer virus engineered to combat another specific computer virus.Definitions & examples from Wiktionary (CC BY-SA 3.0).Words closest in meaningBy meaning, not spelling — each word's AI semantic fingerprint, nearest first.anticoronaviral 67% match — That counters coronaviruses. vs countervirus →antipoxvirus 64% match — That counters the effects of poxviruses vs countervirus →antiretrovirus 63% match — Countering retroviruses; antiretroviral. vs countervirus →antiflavivirus 62% match — That counters flaviviruses vs countervirus →antiorthopoxvirus 62% match — That counters the effect of orthopoxviruses vs countervirus →antiphage 61% match — That counters a viral phage vs countervirus →anticoronavirus 61% match — Acting against coronavirus (usually in reference to antibodies). vs countervirus →antipoxviral 61% match — That counters poxviruses vs countervirus →