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WordReference Random House Learner's Dictionary of American English © 2024vir•u•lent /ˈvɪryələnt, ˈvɪrə-/USA pronunciation adj. - Pathologyactively poisonous;
very noxious;
harmful or deadly;
highly infective:a virulent strain of bacteria. - violently hostile;
intensely bitter, hateful, or wishing evil:a virulent speech.
vir•u•lence, n. [uncountable] WordReference Random House Unabridged Dictionary of American English © 2024vir•u•lent (vir′yə lənt, vir′ə-),USA pronunciation adj. - Pathologyactively poisonous;
intensely noxious:a virulent insect bite. - Medicinehighly infective;
malignant or deadly. - Microbiology[Bacteriol.]causing clinical symptoms.
- violently or spitefully hostile.
- intensely bitter, spiteful, or malicious:a virulent attack.
- Latin vīrulentus, equivalent. to vīr(us) poison (see virus) + -ulentus -ulent
- Middle English verulent 1350–1400
- 1.See corresponding entry in Unabridged venomous.
- 5.See corresponding entry in Unabridged vicious, acerbic.
- 1.See corresponding entry in Unabridged harmless.
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