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ATV (EN)
noun

noun “ATV”

singular ATV, plural ATVs or uncountable
  1. All-Terrain Vehicle, a small vehicle with three or four wheels, designed for driving off-road on rough terrain
    They rode their ATVs through the muddy trails.
  2. Airport Transit Visa, a visa allowing a traveler to change planes in an airport without entering the country
    He needed an ATV to transit through the German airport.
  3. (pharmacology) atazanavir, a medication used to treat HIV infection
    ATV is an important drug in antiretroviral therapy.