[ op-uh-rey-shuh-nl ]
/ ˌɒp əˈreɪ ʃə nl /


able to function or be used; functional: How soon will the new factory be operational?
  1. of, relating to, or involved in military operations.
  2. on active service or combat duty: All units of the command are operational.
of or relating to operations or an operation.

Origin of operational

First recorded in 1920–25; operation + -al1

Related forms

op·er·a·tion·al·ly, adverbnon·op·er·a·tion·al, adjectivepre·op·er·a·tion·al, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for operational

British Dictionary definitions for operational


/ (ˌɒpəˈreɪʃənəl) /


of or relating to an operation or operations
in working order and ready for use
military capable of, needed in, or actually involved in operations

Derived Forms

operationally, adverb
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012