1. Of or pertaining to, or used for, purification; as, lustral days; lustral water 
2. Of or pertaining to a lustrum

Encyclopedia: Lustral

• infected
• infection
• infectious
• infectious agent
• infectious disease
• infectious hepatitis
• infectious mononucleosis
• infectious polyneuritis
• infectiously
• infectiousness
• infective
• infective agent
• infecund
• infelicitous
• infelicitously
• infelicity
• infer
• inferable
• inference
• inferential
• inferior
• inferior alveolar artery
• inferior cerebellar artery
• inferior cerebral vein
• inferior colliculus