1. Thujopsis one species; has close similarity to genus Thuja
  2. dihybrid a hybrid produced by parents that differ only at two gene loci that have two alleles each
  3. cohabit share living quarters
  4. toehold a relatively insignificant position from which future progress might be made
  5. hubbub loud confused noise from many sources
  6. Hubble United States astronomer who discovered that (as the universe expands) the speed with which nebulae recede increases with their distance from the observer (1889-1953)
  7. hubby a married man; a woman's partner in marriage
  8. Chihuahua a state in northern Mexico; mostly high plateau
  9. Hubel United States neuroscientist noted for his studies of the neural basis of vision (born in 1926)
  10. Thuja red cedar
  11. hobo a disreputable vagrant
  12. Toyohashi a Japanese city in southern Honshu on the Pacific shore
  13. Tojo Japanese army officer who initiated the Japanese attack on Pearl Harbor and who assumed dictatorial control of Japan during World War II; he was subsequently tried and executed as a war criminal (1884-1948)
  14. hub central part of a car wheel through which the axle passes
  15. eohippus earliest horse
  16. pahoehoe freely flowing lava
  17. Tahitian of or relating to or characteristic of the island of Tahiti or its residents or their language and culture
  18. protohippus Pliocene horse approaching donkeys in size
  19. habitue a regular patron
  20. hibachi a portable brazier that burns charcoal and has a grill for cooking

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