- SO3 (disambiguation)
SO3 may refer to:
*
Sulfur trioxide , a chemical compound of sulfur and oxygen.
*Sulfite , a chemical ion composed of sulfur and oxygen with a 2- charge.
*SO(3) , the special orthogonal group in 3 dimensions; the rotations that can be given an object in 3-space.
*"", the third main game in the "Star Ocean" series.
*Astaff officer of the third class, usually ajunior officer .
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