Notation \No*ta"tion\, n. [L. notatio a marking, observing, etymology, fr. notare to mark, nota a mark: cf. F. notation. See 5th Note.]

1. The act or practice of recording anything by marks, figures, or characters.

2. Any particular system of characters, symbols, or abbreviated expressions used in art or science, to express briefly technical facts, quantities, etc. Esp., the system of figures, letters, and signs used in arithmetic and algebra to express number, quantity, or operations.

3. Literal or etymological signification. [Obs.]

``Conscience'' is a Latin word, and, according to the very notation of it, imports a double or joint knowledge. --South.

Source: Webster's Revised Unabridged Dictionary (1913)