1. Pertaining to one of the small sacs (as in a compound gland)
   - acinar, acinous, acinic

See also: acinus

• imperforate anus
• imperforate hymen
• imperial
• imperial beard
• Imperial capacity unit
• imperial decree
• imperial elephant
• Imperial gallon
• imperial Japanese morning glory
• imperial mammoth
• imperial moth
• imperialism
• imperialist
• imperialistic
• imperially
• imperil
• imperilment
• imperious
• imperiously
• imperiousness
• imperishability
• imperishable
• imperishableness
• imperishingness
• imperium