What is the meaning of Mnemonic?

Especially of a series of ideas, letters, words, etc.: intended to help in remembering.

Of or relating to mnemonics (the study of techniques for remembering anything more easily).

Of or relating to memory.

Something (especially a series of ideas, letters, words, etc.) used to help in remembering a thing; a memory aid.

The human-readable, textual form of an assembly language instruction, not including operands.

Synonym of mnemonics (the study of techniques for remembering anything more easily)

Source: wiktionary.org