Pronunciation: gan- ' s ī -kl ə -( ˌ )vir
Function: noun
Etymology: perhaps from g u an osine + -ciclovir, alteration of -cyclovir (as in acyclovir )
Date: 1986
: an antiviral drug C 9 H 13 N 5 O 4 related to acyclovir and used especially to treat cytomegalovirus retinitis in immunocompromised individuals