The story
Etymology from Wiktionary, CC BY-SA 4.0.
Today it means: A chemical compound containing hydroxymethyl cyclopentene bound to guanosine which is active against some viruses. IUPAC name is 2-amino-9-[(1R,4S)-4-(hydroxymethyl)cyclopent-2-en-1-yl]-3H-purin-6-one Full definition →
Etymology from Wiktionary, CC BY-SA 4.0.