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1

os

play
noun \ˈäs\

Definition of os

plural os·sa play \ˈä-sə\

  1. :  bone



Origin of os

Latin oss-, os — more at osseous


First Known Use: 15th century

Rhymes with os


2

os

play
noun \ˈōs\

Definition of os

plural ora play \ˈȯr-ə\

  1. :  orifice



Origin of os

Latin or-, os — more at oral


First Known Use: 1737

Rhymes with os


Os

symbol

Definition of Os

  1. osmium



Other Chemical Engineering Terms


OS

abbreviation

Definition of OS

  1. 1 [Latin oculus sinister] left eye

  2. 2 Old Style

  3. 3 operating system

  4. 4 out of stock




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February 12, 2016

of, relating to, or suggestive of marble

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196.5 pounds 16.96 pounds 2.2 pounds 100 pounds
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