American Dictionary of the English Language

SIMILE, noun sim'ily. [Latin] In rhetoric, similitude; a comparison of two thing which, however different in other respects, have some strong point or points of resemblance; by which comparison, the character or qualities of a thing are illustrated or presented in an impressive light. Thus, the eloquence of Demosthenes was like a rapid torrent; that of Cicero, like a large stream that glides smoothly along with majestic tranquility.