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From [Term?] + -arabine (“arabinofuranosyl derivative”).
Etymology from Wiktionary, CC BY-SA 4.0.
vidarabine
Today it means: An antiviral drug C₁₀H₁₃N₅O₄·H₂O, a form of arabinofuranosyladenine, which is active against herpes simplex and varicella zoster viruses. Full definition →