1. trial run trying something to find out about it
  2. trillion the number that is represented as a one followed by 12 zeros
  3. trimaran a fast sailboat with 3 parallel hulls
  4. forlorn marked by or showing hopelessness
  5. triolein a naturally occurring glyceride of oleic acid that is found in fats and oils
  6. tricorn cocked hat with the brim turned up to form three points
  7. drill rig rig used in drilling for oil or gas
  8. drill rod carbon steel used for rock drills and dowels
  9. tricorne cocked hat with the brim turned up to form three points
  10. dry run a practice session in preparation for a public performance
  11. Triglinae in some classifications considered a subfamily of Triglidae comprising searobins having ordinary scales and no barbels (true searobins)
  12. trial attorney a lawyer who specializes in defending clients before a court of law
  13. trawl line a long fishing line with many shorter lines and hooks attached to it (usually suspended between buoys)
  14. trial court the first court before which the facts of a case are decided
  15. tellurian of or relating to or inhabiting the land as opposed to the sea or air
  16. radiolarian protozoa with amoeba-like bodies and radiating filamentous pseudopods
  17. trial the act of testing something
  18. trilateral having three sides
  19. true laurel small Mediterranean evergreen tree with small blackish berries and glossy aromatic leaves used for flavoring in cooking; also used by ancient Greeks to crown victors
  20. trillium any liliaceous plant of the genus Trillium having a whorl of three leaves at the top of the stem with a single three-petaled flower