From Longman Dictionary of Contemporary Englishchicken poxˈchicken ˌpox, chickenpox /ˈtʃɪkənpɒks $ -pɑːks/ noun [uncountable] MIan infectious illness which causes a slight fever and spots on your skin
Examples from the Corpus
chicken pox• There was nothing to do but start over: I went into the hospital with two infections, pneumocystis and chicken pox.• Justin was in the hospital, under observation after he contracted chicken pox and a cough, Lopez said.• At the John Radcliffe Hospital she died from the treatment and from chicken pox.• He claims that he really had chicken pox but his doctor misdiagnosed it.• Scarlet fever, mumps, chicken pox, and whooping cough floated in the air.• No concessions are made to their infant's chicken pox or wedding anniversaries.• I caught influenza along with the chicken pox. 