原げん発ぱつ性せい免めん疫えき不ふ全ぜん症しょうげんぱつせいめんえきふぜんしょうMeanings1nounprimary immunodeficiency syndromerare termRare medical term; often referred to by the longer form 原発性免疫不全症候群. Used in clinical contexts.See also: 原発性免疫不全症候群原げん発