1. Possessing eminence, elevation, dignity, etc.; above whatever is low, mean, degrading, or dishonorable; magnanimous; as, a noble nature or action; a noble heart. Statues, with winding ivy crowned, belong To nobler poets for a nobler song. (Dryden)
2. Grand; stately; magnificent; splendid; as, a noble edifice.
(Science: chemistry) Noble metals, silver, gold, and platinum; so called from their freedom from oxidation and permanence in air. Copper, mercury, aluminium, palladium, rhodium, iridium, and osmium are sometimes included.
Origin: F. Noble, fr. L. Nobilis that can be or is known, well known, famous, highborn, noble, fr.noscere to know. See know.