n.
Pronunciation: ( ˌ ) ā - ' s ī -kl ō - ˌ vir
Function: noun
Etymology: 2 a- + cycl- + vir us
Date: 1979
: a cyclic synthetic nucleoside C 8 H 11 N 5 O 3 used especially to treat the symptoms of chicken pox, shingles, and the genital form of herpes simplex