Definition of "coprocessor" []

• A microprocessor that performs specialized functions that the central processing unit cannot perform or cannot perform as well and as quickly. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "Sometimes it's hard having an arithmetic coprocessor running in my head all the time."
• "But unlike the Unix operating system or a math coprocessor chip, the relationship between him and Elana was something he couldn't understand."
• "Oh yes, that was the time when a math coprocessor may or may not have been included in your chip, and there was a separate socket on the motherboard for it."