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Webster 1913 Edition

Adj.

Nonrecurrent;

as, the costs of a layoff are considered as a

nonrecurring

expense

See also: non-recurring

nonrecurring ‎(not comparable)

not recurring; occurring only once
In accounting nonrecurring items are exceptional transactions that are not related to normal business operations. The most common nonrecurring items are capital gains, additional write-downs or reversals of write-downs and provisions for planned restructuring and penalties.

occurring only once