Entry 1 sense Webster, 1913 Herpes zoster /hẽrp'-ēz zäs'-tẽr/ · Her·pes zos·ter · IPA 01 n. same as shingles; -- a form of herpes caused by the varicella-zoster virus. 1. same as shingles; -- a form of herpes caused by the varicella-zoster virus.(Med.) See: shingles, herpes