1. ternary having three units or components or elements
  2. trireme ancient Greek or Roman galley or warship having three tiers of oars on each side
  3. tone arm mechanical device consisting of a light balanced arm that carries the cartridge
  4. ornery having a difficult and contrary disposition
  5. titan arum malodorous tropical plant having a spathe that resembles the corolla of a morning glory and attains a diameter of several feet
  6. tornado a violently destructive windstorm occurring over land
  7. surname the name used to identify the members of a family
  8. cornered forced to turn and face attackers
  9. torrent an overwhelming number or amount
  10. Drynaria large robust epiphytic ferns of tropical forest and scrub
  11. ternate (of a leaf shape) consisting of three leaflets or sections
  12. turnaround time need to prepare a vessel or ship for a return trip
  13. perineurium the sheath of connective tissue that covers a bundle of nerve fibers
  14. darner a person who mends by darning
  15. moratorium suspension of an ongoing activity
  16. corner man a man at one end of line of performers in a minstrel show
  17. coronary surrounding the heart like a crown
  18. tourniquet a bandage that stops the flow of blood by applying pressure
  19. theorem an idea accepted as a demonstrable truth
  20. veterinarian a doctor who provides health care to animals