1. (noun) a congenital disease affecting T cells that can result from a mutation in any one of several different genes; children with it are susceptible to infectious disease; if untreated it is lethal within the first year or two of life

• severe combined immunodeficiency
• severe combined immunodeficiency disease

1. (noun) a congenital disease affecting T cells that can result from a mutation in any one of several different genes; children with it are susceptible to infectious disease; if untreated it is lethal within the first year or two of life

• ada-scid
• x-linked scid
• x-scid

1. (noun) a congenital disease affecting T cells that can result from a mutation in any one of several different genes; children with it are susceptible to infectious disease; if untreated it is lethal within the first year or two of life

• immunodeficiency
• monogenic disease
• monogenic disorder