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7-letter words starting with OS

Every match in the dictionary, most common first.

32 words found

7-letter words 32

  • ostricha person who refuses to face reality or recognize the truth (a reference to the popular notion that the ostrich hides from danger by burying its head in the sand)
  • osmosis(biology, chemistry) diffusion of molecules through a semipermeable membrane from a place of higher concentration to a place of lower concentration until the concentration on both sides is equal
  • ospreyslarge harmless hawk found worldwide that feeds on fish and builds a bulky nest often occupied for years
  • osmoticof or relating to osmosis
  • ossuaryany receptacle for the burial of human bones
  • ostraca
  • osseouscomposed of or containing bone
  • ostlerssomeone employed in a stable to take care of the horses
  • osmunda
  • osteomaa slow growing benign tumor of consisting of bone tissue; usually on the skull or mandible
  • ostmark
  • osculum
  • osmolal
  • osmolar
  • osmoses
  • osteoid
  • osmatic
  • ossiclea small bone; especially one in the middle ear
  • oscinestwo names for the suborder of typical songbirds
  • oscular
  • oscules
  • osmious
  • osmiumsa hard brittle blue-grey or blue-black metallic element that is one of the platinum metals; the heaviest metal known
  • osmoles
  • osmosed
  • osmundsany fern of the genus Osmunda: large ferns with creeping rhizomes; naked sporangia are on modified fronds that resemble flower clusters
  • osseins
  • ossific
  • ostiarythe lowest of the minor Holy Orders in the unreformed Western Church but now suppressed by the Roman Catholic Church
  • ostiolea small pore especially one in the reproductive bodies of certain algae and fungi through which spores pass
  • ostoses
  • ostosis