1. bimester a period of 2 months
  2. semester one of two divisions of an academic year
  3. paymaster a person in charge of paying wages
  4. polestar the brightest star in Ursa Minor
  5. blue star subshrubs of southeastern United States forming slow-growing clumps and having blue flowers in short terminal cymes
  6. bemused perplexed by many conflicting situations or statements
  7. demister heater that removes mist from the windshield of a car
  8. bestir become active
  9. bimestrial occurring every two months
  10. bog star plant having ovate leaves in a basal rosette and white starlike flowers netted with green
  11. barrister a British lawyer who speaks in the higher courts of law
  12. polyester a complex ester used for making fibers or resins or plastics or as a plasticizer
  13. maestro an artist of consummate skill
  14. webmaster a technician who designs or maintains a website
  15. chemistry the science of matter
  16. pester annoy persistently
  17. palaestra a public place in ancient Greece or Rome devoted to the training of wrestlers and other athletes
  18. hamster short-tailed Old World burrowing rodent with large cheek pouches
  19. teamster someone who drives a truck as an occupation
  20. rhymester a writer who composes rhymes; a maker of poor verses