D defs.my
Entry 2 senses Webster, 1913

Lustral

· Lus·tral · IPA
01 a. Of or pertaining to, or used for, purification; as, lustral days; lustral water.
  1. 1.
    Of or pertaining to, or used for, purification; as, lustral days; lustral water.
  2. 2.
    Of or pertaining to a lustrum.