- The definition of an os is a mouth or hole.
An example of an os is a shirt opening for a head to go through.
O's definition by Webster's New World
Origin: Swedish ås, ridge, plural åsar ; from Old Norse āss ; from Indo-European base an unverified form omso-, shoulder from source Classical Greek ōmos, Classical Latin umerus, shoulder
Origin: L: see ossify
Origin: L: see oral
Origin: Classical Latin oculus sinisterleft eye
O's definition by American Heritage Dictionary
noun pl. o·ra
Origin: Latin ōs, mouth; see ōs- in Indo-European roots.
noun pl. os·sa
Origin: Latin, bone; see ost- in Indo-European roots.
noun pl. os·ar
Origin: Swedish ås, ridge, from Old Norse āss.
- or O/S Old Style
- ordinary seaman
- Latin oculus sinister (left eye)
- old series
- or o/s out of stock
o's - Computer Definition
The master software program that controls the allocation and usage of all internal resources (e.g., memory, queuing, input/output, central processing unit [CPU], time, disk space, and transmission and reception processes) and, thereby, enables and controls the operation of the entire computer system.The OS forms the foundation for application software that performs end-user tasks such as word processing and mathematical calculation. An OS is largely software, although there are firmware components. See also firmware, program, and software.
o's - Medical Definition
o's - Science Definition
Variant of o
- the fifteenth letter of the English alphabet: from the Greek omega and omicron, both borrowed from the Phoenician
- any of the speech sounds that this letter represents, as, in English, the vowel (ō) of boat, (ä) of hot, or (ô) of wrong
- a type or impression for o or O
- the fifteenth in a sequence or group
- an object shaped like
- of o or O
- fifteenth in a sequence or group
- shaped like ; circular or oval in shape