1. vocabulary a language user's knowledge of words
  2. auxiliary boiler an extra boiler
  3. capillary vessel any of the minute blood vessels connecting arterioles with venules
  4. cable railway a railway up the side of a mountain pulled by a moving cable and having counterbalancing ascending and descending cars
  5. parula warbler small grey-blue wood warbler with yellow throat and breast
  6. polar bear white bear of Arctic regions
  7. Kepler's law (astronomy) one of three empirical laws of planetary motion stated by Johannes Kepler
  8. vocaliser an organism that can utter vocal sounds
  9. globular pearlite if steel or iron cool very slowly the cementite may occur in globules instead of in layers
  10. copper-base alloy any alloy whose principal component is copper
  11. cobbler's last holding device shaped like a human foot that is used to fashion or repair shoes
  12. fabulously exceedingly; extremely
  13. caterpillar a wormlike and often hairy larva of a moth or butterfly
  14. tabula rasa an opportunity to start over without prejudice
  15. Paul Robeson United States bass singer and an outspoken critic of racism and proponent of socialism (1898-1976)
  16. collar blight a disease affecting the trunks of pear and apple trees
  17. calceolaria any garden plant of the genus Calceolaria having flowers with large inflated slipper-shaped lower lip
  18. black poplar large European poplar
  19. colour bar barrier preventing blacks from participating in various activities with whites
  20. arteria basilaris an unpaired artery