• (n.) An Italian silver coin. The testoon of Rome is worth 1s. 3d. sterling, or about thirty cents.
British silver portrait coin issued by kings Henry VII and Henry VIII, with a face value of 5p (12d), later known as the shilling c. 1550.
Tes·toon' noun [ Italian testone . See Tester a coin.] An Italian silver coin. The testoon of Rome is worth 1s. 3d. sterling, or about thirty cents. Homans.