1. ozone layer a layer in the stratosphere (at approximately 20 miles) that contains a concentration of ozone sufficient to block most ultraviolet radiation from the sun
  2. ozone hole an area of the ozone layer (near the poles) that is seasonally depleted of ozone
  3. ocean liner a large commercial ship
  4. minelayer ship equipped for laying marine mines
  5. overlayer protective covering consisting, for example, of a layer of boards applied to the studs and joists of a building to strengthen it and serve as a foundation for a weatherproof exterior
  6. ossicular pertaining to the ossicles in the middle ear
  7. signaller someone who communicates by signals
  8. signaler someone who communicates by signals
  9. ocean floor the bottom of a sea or ocean
  10. annular shaped like a ring
  11. inhaler a dispenser that produces a chemical vapor to be inhaled in order to relieve nasal congestion
  12. azonal not divided into zones
  13. ostler someone employed in a stable to take care of the horses
  14. horny layer the outermost layer of the epidermis consisting of dead cells that slough off
  15. stonewaller one who stonewalls or refuses to answer or cooperate
  16. ozonosphere a layer in the stratosphere (at approximately 20 miles) that contains a concentration of ozone sufficient to block most ultraviolet radiation from the sun
  17. wisenheimer an upstart who makes conceited, sardonic, insolent comments
  18. Eisenhower United States general who supervised the invasion of Normandy and the defeat of Nazi Germany; 34th President of the United States (1890-1961)
  19. John Uhler United States film actor (1925-2001)
  20. Weizenbier a general name in southern Germany for wheat beers

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