[er-er] /ˈɛr ər/
a deviation from accuracy or correctness; a mistake, as in action or speech:
His speech contained several factual errors.
belief in something untrue; the holding of mistaken opinions.
the condition of believing what is not true:
in error about the date.
a moral offense; wrongdoing; sin.
Baseball. a misplay that enables a base runner to reach base safely or advance a base, or a batter to have a turn at bat prolonged, as the dropping of a ball batted in the air, the fumbling of a batted or thrown ball, or the throwing of a wild ball, but not including a passed ball or wild pitch.
Mathematics. the difference between the observed or approximately determined value and the true value of a quantity.
Philately. a stamp distinguished by an error or errors in design, engraving, selection of inks, or setting up of the printing apparatus.
Compare 1 (def 5), (def 8).
a mistake or inaccuracy, as in action or speech: a typing error
an incorrect belief or wrong judgment
the condition of deviating from accuracy or correctness, as in belief, action, or speech: he was in error about the train times
deviation from a moral standard; wrongdoing: he saw the error of his ways
(maths, statistics) a measure of the difference between some quantity and an approximation to or estimate of it, often expressed as a percentage: an error of 5%
(statistics) See type I error, type II error
also, through 18c., errour, c.1300, from Old French error “mistake, flaw, defect, heresy,” from Latin errorem (nominative error) “a wandering, straying, mistake,” from errare “to wander” (see err).
Words for “error” in most Indo-European languages originally meant “wander, go astray” (but cf. Irish dearmad “error,” from dermat “a forgetting”).
error er·ror (ěr’ər)
1. A discrepancy between a computed, observed, or measured value or condition and the true, specified, or theoretically correct value or condition.
2. A mental mistake made by a programmer that may result in a program fault.
3. (verb) What a program does when it stops as result of a programming error.
noun, Linguistics. 1. the systematic study of deviations from target-language norms in the course of second-language acquisition, especially in terms of the learner’s developing interlanguage.
- Error-based testing
programming Testing where information about programming style, error-prone language constructs, and other programming knowledge is applied to select test data capable of detecting faults, either a specified class of faults or all possible faults. (1996-05-13)
noun, Numismatics. 1. a coin showing evidence of a mistake in its manufacture.
- Error correcting memory
storage (ECM) RAM using some kind of error detection and correction (EDAC) scheme. The two types of memory errors in RAM (especially DRAM) are “soft” errors due to radiation-induced bit switching, and “hard” errors due to the unexpected deterioration of a memory chip. Soft errors do not indicate lasting damage to the memory board, but […]