1. aromatic aster a variety of aster
  2. achromatic lens a compound lens system that forms an image free from chromatic aberration
  3. Armata Corsa a terrorist organization founded in 1999 to oppose the link between nationalists and the Corsican mafia
  4. achromatic colour a color lacking hue; white or grey or black
  5. automatic firearm a firearm that reloads itself and keeps firing until the trigger is released
  6. dramatic irony when the audience understands something the characters don't
  7. achromatic color a color lacking hue; white or grey or black
  8. chromatic colour a color that has hue
  9. automatic teller an unattended machine (outside some banks) that dispenses money when a personal coded card is used
  10. chromatic color a color that has hue
  11. probiotic flora a beneficial bacterium found in the intestinal tract of healthy mammals; often considered to be a plant
  12. rheumatic fever a severe disease chiefly of children and characterized by painful inflammation of the joints and frequently damage to the heart valves
  13. traumatic epilepsy a convulsive epileptic state caused by a head injury
  14. Arctic fox thickly-furred fox of Arctic regions
  15. aortic valve a semilunar valve between the left ventricle and the aorta
  16. orange-flowered having orange flowers
  17. automatic washer a home appliance for washing clothes and linens automatically
  18. old maid flower any of various plants of the genus Zinnia cultivated for their variously and brightly colored flower heads
  19. paradise flower tropical shrub or small tree having showy yellow to orange-red flowers; sometimes placed in genus Poinciana
  20. trumpet flower evergreen North American honeysuckle vine having coral-red or orange flowers