1. Serving to purge or rid of sin
   "purgatorial rites"
   - purging, purifying 
2. Of or resembling purgatory
   "purgatorial fires"

See also: purgation, purgatory

• family Actinomycetaceae
• family Adelgidae
• family Adiantaceae
• family Aegypiidae
• family Aepyornidae
• family Agamidae
• family Agaricaceae
• family Agavaceae
• family Agonidae
• family Ailuropodidae
• family Aizoaceae
• family Akeridae
• family Alaudidae
• family Albuginaceae
• family Albulidae
• family Alcedinidae
• family Alcidae
• family Aleyrodidae
• family Alismataceae
• family Alliaceae
• family Alligatoridae
• family Allioniaceae
• family Aloeaceae
• family Alopiidae
• family Alstroemeriaceae