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atomic operation[ə′täm·ik ‚äp·ə′rā·shən]
An operation that cannot be broken up into smaller parts that could be performed by different processors.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
atomicIndivisible. An atomic operation, or atomicity, implies an operation that must be performed entirely or not at all. For example, if machine failure prevents a transaction to be processed to completion, the system will be rolled back to the start of the transaction. See two-phase commit and atom.
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