PREVALENCE n.
being prevalent; superior strength, force, or influence; general existence, reception, or practice; wide extension; as, the prevalence of virtue, of a fashion, or of a disease; the prevalence of a rumor. The duke better knew what kind of argument were of prevalence with him. Clarendon.
PRINTING n.
The act, art, or practice of impressing letters, characters, or figures on paper, cloth, or other material; the business of a printer, including typesetting and presswork, with their adjuncts; typography; also, the act of producing photographic prints. Block printing. See under Block. -- Printing frame (Photog.), a sh…