Wiktionary
co-processor
n. (alternative spelling of coprocessor English)
Usage examples of "co-processor".
The mathematics co-processors came online and then disappeared before he'd entered the necessary calculations, shrieking gibberish and sliding away in a jumble of meaningless symbols.
The lower-deck sensors were completely useless, as were her navigation computer and the new mathematics and graphics co-processors she'd just invested in.
Even as she spoke, she assigned a virtual memory space and a graphics co-processor to the problem.