1. Past times remembered with nostalgia
   - langsyne, old times, good old days

Type of: past, past times, yesteryear

• immune gamma globulin
• immune globulin
• immune reaction
• immune response
• immune serum globulin
• immune suppressant drug
• immune system
• immunisation
• immunise
• immunised
• immunity
• immunization
• immunize
• immunized
• immunizing agent
• immunoassay
• immunochemical
• immunochemical assay
• immunochemistry
• immunocompetence
• immunocompetent
• immunocompromised
• immunodeficiency
• immunodeficient
• immunoelectrophoresis