1. hat trick three scores by one player in one game
  2. subtropics regions adjacent to the tropics
  3. tropics the part of the Earth's surface between the Tropic of Cancer and the Tropic of Capricorn; characterized by a hot climate
  4. semitropics regions adjacent to the tropics
  5. hit the books learn by reading books
  6. phototropism an organism's orienting response to light
  7. hydroponics a technique of growing plants in liquid without soil
  8. hot-water bag a stoppered receptacle (usually made of rubber) that is to be filled with hot water and used for warming a bed or parts of the body
  9. eolotropic having properties with different values along different axes
  10. hydrops swelling from excessive accumulation of watery fluid in cells, tissues, or serous cavities
  11. Notropis shiners
  12. autotrophic able to synthesize its own food
  13. isotropic invariant with respect to direction
  14. anthropic relating to mankind or the period of mankind's existence
  15. allotropic of or related to or exhibiting allotropism
  16. aeolotropic having properties with different values along different axes
  17. emmetropic of or relating to the normal condition of the eye in which visual images are in clear focus on the retina
  18. lipotropic having an affinity for lipids
  19. head trip an exciting or stimulating experience
  20. hyperopic abnormal ability to focus of distant objects