NOTATION n.
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.
UPPER a.
, usually of hard wood, and heavier than the other strakes. -- Upper ten thousand, or (abbreviated) Upper ten, the ten thousand, more or less, who are highest in position or wealth; the upper class; the aristocracy. [Colloq.] -- Upper topsail (Naut.), the upper half of a double topsail. -- Upper works (Naut.), all th…