Definitions for "check bit"
Keywords:  parity, abit, error, detection, bit
(computer science) abit that is used in an error detection procedure in which a 0 or 1 is added to each group of bits so that it will have either an odd number of 1's or an even number of 1's; e.g., if the parity is odd then any group of bits that arrives with an even number of 1's must contain an error
a single bit that is added to a byte or string as a part of an error detection (or sometimes error-correction ) system
A bit associated with a character or block for the purpose of checking the absence of error within the character or block.