1. An act, assertion, or belief that unintentionally deviates from what is correct, right, or true: It was an error on Mark's part to hold the map upside down causing him and his family to get lost.
2. The condition of having incorrect or false knowledge: Because of an error in the referral information, the police ended up arresting the wrong person.
3. The act or an instance of deviating from an accepted code of behavior: Not wearing a tie for his friend's formal wedding was an error on the part of James, the best man.
4. A reference to something that is unintentionally done the wrong way; for example, as a result of poor judgment or not being careful: Kate's silly cat exhibited several errors by jumping on the bed and later jumping on top of the table.
5. A belief or opinion that is contrary to facts or to established doctrines: The error Mrs. White made was in not checking with the principal before scheduling a trip with the students.
6. The state of holding incorrect beliefs or opinions, or the fact of acting wrongly or misguidedly caused by human misconceptions: It was Cleo's error that she spilled the juice because she didn't realize that the lid on the container was loose.
7. The state or fact of being a mistake, or of being inappropriate or unacceptable: The error on the page was glaringly obvious when Roy's friend pointed it out to him.
8. In baseball, a fielding misplay, called when the official scorer judges that a play should have either led to an out or prevented a runner from advancing: The shortstop was charged with an error by the umpire.
9. The failure of a computer program, subroutine, or system to produce an anticipated result: The flashing light on the keyboard of the computer indicated a program error.
10. A variation between the true value of a mathematical quantity and a calculated or measured value: The clerk at the store committed an error when she was calculating the amount of taxes for the purchases.
11. Etymology: from Old French errur, from Latin errorem, "a wandering, a straying, a mistake"; from errare, "to wander".

The statistical error made in testing a hypothesis when it is concluded that a result is positive, but it really is not.

A distortion of the directional properties of a loop antenna caused by an input to the direction-finding receiver which is produced between the loop and the ground.

This is the opposite of that which is created between the two terminals of the loop.

A code stored on an RFID tag to enable the reader to figure out the value of missing or garbled bits of data.

It's needed because a reader might misinterpret some data from the tag and think a wrist watch is actually a pair of socks.

A mode of data transmission between the tag and reader in which errors or missing data is automatically corrected.

A set of rules used by readers to interpret data correctly from the tag.

A code on an RFID tag that enables a reader to determine the value of missing or garbled bits of data.

The number of errors per number of transactions.

The maximum difference between the upscale-going and downscale-going values of the driven variable, at a common driving variable in a hysteresis loop.

1. A variation in the character of the ionospheric transmission path, or paths, used by the radio waves of electronic navigation systems which, if not compensated, will produce an error in the information generated by the system.
2. All systematic and random errors caused by the reception of a navigation signal after ionospheric reflection.

Faults in a computer-program design; such as, in the order of instructions: Logical errors may cause a program to respond incorrectly to the user's requests or to crash completely.

Indefiniteness or a mistake in a measurement process that varies unsystematically or unpredictably from measurement to measurement: The random error has a magnitude that may be quantifiable by statistical methods.

Random errors are caused by unexpected fluctuations in the readings of a measuring apparatus or by the reader of the instrument.