1. Cannot be divided without leaving a remainder
   - indivisible by

See also: indivisible

• atavist
• atavistic
• ataxia
• ataxic
• ataxic abasia
• ataxic aphasia
• ataxy
• Atayalic
• Ate
• atelectasis
• ateleiosis
• ateleiotic
• Ateles
• Ateles geoffroyi
• atelier
• ateliosis
• atemporal
• Aten
• atenolol
• ateria gastrica dextra
• ATF
• Athabascan
• Athabaskan
• Athanasian Creed
• Athanasianism