(virology) ultramicroscopic infectious agent that replicates itself only within cells of living hosts; many are pathogenic; a piece of nucleic acid (DNA or RNA) wrapped in a thin coat of protein
a software program capable of reproducing itself and usually capable of causing great harm to files or other programs on the same computer; "a true virus cannot spread to another computer without human assistance"
a harmful or corrupting agency; "bigotry is a virus that must not be allowed to spread"; "the virus of jealousy is latent in everyone"
chiefly nocturnal predacious arthropod having a flattened body of 15 to 173 segments each with a pair of legs the foremost being modified into poison fangs
a radical who employs terror as a political weapon; usually organizes with other terrorists in small cells; often uses religion as a cover for terrorist activities
characteristic of someone who employs terrorism (especially as a political weapon); "terrorist activity"; "terrorist state"
a larva of an insect with incomplete metamorphosis (as the dragonfly or mayfly)
(classical mythology) a minor nature goddess usually depicted as a beautiful maiden; "the ancient Greeks believed that nymphs inhabited forests and bodies of water"