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Freebase(0.00 / 0 votes)Rate this definition: OSIsoft. OSIsoft, LLC is a worldwide manufacturer of Application software for real-time data infrastructure solutions, called the PI System. Founded in 1980, OSIsoft, LLC is privately held and headquartered in San Leandro, CA, with operations worldwide.
Aluminium oxide is a chemical compound of aluminium and oxygen with the chemical formula Al 2 O 3.It is the most commonly occurring of several aluminium oxides, and specifically identified as aluminium(III) oxide.luminium oxide is insoluble in water. In its most commonly occurring crystalline form, called corundum or Î±-aluminium oxide, its hardness makes it suitable for use as an abrasive and as a component in cutting tools.