1. os hamatum the wrist bone in line with the 4th and 5th fingers
  2. osmium a hard brittle blue-grey or blue-black metallic element that is one of the platinum metals; the heaviest metal known
  3. ultimatum a final peremptory demand
  4. osmiridium a hard and corrosion resistant mineral that is a natural alloy of osmium and iridium (usually containing small amounts of rhodium and platinum); used in needles and pen nibs etc.
  5. os lunatum one of the eight small wrist bones
  6. osmotic of or relating to osmosis
  7. adamant very hard native crystalline carbon valued as a gem
  8. osteoma a slow growing benign tumor of consisting of bone tissue
  9. cymatium a molding for a cornice; in profile it is shaped like an S
  10. amateur someone who pursues a study or sport as a pastime
  11. acetum sour-tasting liquid produced usually by oxidation of the alcohol in wine or cider and used as a condiment or food preservative
  12. asymmetry a lack of balance or proportion among the parts of something
  13. Ocimum basil
  14. Onosmodium a genus of North American perennial herbs of the family Boraginaceae
  15. isometry equality of measure
  16. Yosemite a series of waterfalls in Yosemite National Park in California; is reduced to a trickle for part of each year
  17. ostomy surgical procedure that creates an artificial opening for the elimination of bodily wastes
  18. os sesamoideum any of several small round bones formed in a tendon where it passes over a joint
  19. Jasminum shrubs and woody climbers mostly of tropical and temperate Old World: jasmine; jessamine
  20. mass medium transmissions that are disseminated widely to the public

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