NAND

This term is a technical portmanteau of "not" and "and," specifically used within the fields of computer science and electrical engineering. It describes a specific logic operation where the output is high unless all inputs are high, making it the inverse of a standard AND gate.

Because NAND gates are functionally complete, they can be used to construct any other logic gate (such as OR, AND, and NOT). Consequently, the term often appears in discussions regarding CMOS technology and flash memory, where "NAND flash" refers to a specific architecture of non-volatile storage.