plural of zoster

(countable) An ancient Greek waist-belt for men. / (uncountable, medicine) The disease called herpes zoster (from the typically beltlike pattern of its rash); shingles.

(pathology) An acute viral inflammation of the sensory ganglia of spinal and cranial nerves associated with a vesicular eruption and neuralgic pains, caused by reactivation of the Human herpes virus 3, in genus Varicellovirus, that also causes chicken pox as primo-infection.

herpes zoster without the characteristic rash

Human alphaherpesvirus 3, the infectious agent that causes chickenpox (varicella) and shingles.