computation

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun The act or process of computing.
• noun A method of computing.
• noun The result of computing.
• noun The act of operating a computer.

from The Century Dictionary.

• noun The act, process, or method of computing, counting, reckoning, or estimating; calculation: in mathematics, generally restricted to long and elaborate numerical calculations: as, the computation of an eclipse.
• noun A result of computing; the amount computed or reckoned.
• noun Synonyms Calculation, estimate, account.

from the GNU version of the Collaborative International Dictionary of English.

• noun The act or process of computing; calculation; reckoning.
• noun The result of computation; the amount computed.
• noun (Computers) The process of performing arithmetical or logical operations, on data by an electronic device.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun The act or process of computing; calculation; reckoning.
• noun The result of computation; the amount computed.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun problem solving that involves numbers or quantities
• noun the procedure of calculating; determining something by mathematical or logical methods