Supervisory Control and Data Acquisition (SCADA)

A generic name for a computerized system that is capable of gathering and processing data and applying operational controls over long distances. Typical uses include power transmission and distribution and pipeline systems. SCADA was designed for the unique communication challenges (delays, data integrity, etc.) posed by the various media that must be used, such as phone lines, microwave, and satellite. Usually shared rather than dedicated.
SOURCE: SP 800-82

Networks or systems generally used for industrial controls or to manage infrastructure such as pipelines and power systems.
SOURCE: CNSSI-4009