os (
http://definr.com/os)
n 1: a mouth or mouthlike opening
2: a hard brittle blue-gray or blue-black metallic element that
is one of the platinum metals; the heaviest metal known
[syn:
osmium,
Os,
atomic number 76]
3: (computer science) software that controls the execution of
computer programs and may provide various services [syn: {operating
system},
OS]
4: the left eye [syn:
oculus sinister,
OS]
5: rigid connective tissue that makes up the skeleton of
vertebrates [syn:
bone]