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Noun: os (ora)  ós
  1. A mouth or mouthlike opening
Noun: Os
  1. A hard brittle blue-grey or blue-black metallic element that is one of the platinum metals; the heaviest metal known
    - osmium, atomic number 76
Noun: os[2] (ossa)
  1. Rigid connective tissue that makes up the skeleton of vertebrates
    - bone
Noun: OS
  1. (computing) software that controls the execution of computer programs and may provide various services
    - operating system
     
  2. The left eye
    - oculus sinister
Noun: o
  1. The 15th letter of the Roman alphabet
    - O

Derived forms: ora, ossa

Type of: alphabetic character, computer software, connective tissue, eye, letter, letter of the alphabet, metal, metallic element, oculus, opening, optic, orifice, package, porta, software, software package, software program, software system

Part of: endoskeleton, horn, Latin alphabet, platform, Roman alphabet

Encyclopedia: Os, Varnamo

OS

O, My Father