(n.) One who, or that which, ticks, or produces a ticking sound, as a watch or clock, a telegraphic sounder, etc.

American Stock Exchange Amex Big Ben TelAutography Teletype Teletype network Teletyping Wall Street abdomen anus appendix blind gut board bourse bowels brain cecum chronometer clock clock movement clockworks closed-circuit telegraphy code colon commodity exchange corn pit curb curb exchange curb market duodenum duplex telegraphy electricity endocardium entrails exchange exchange floor facsimile telegraph foregut giblets gizzard guts heart hindgut horologe horologium innards inner mechanism insides internals interrupter intestine inwards jejunum key kidney kishkes large intestine liver liver and lights lung midgut multiplex telegraphy news ticker outside market over-the-counter market perineum pit pump pylorus quadruplex telegraphy quotation board railroad telegraphy receiver rectum sender simplex telegraphy single-current telegraphy small intestine sounder spleen stock exchange stock market stock ticker stomach submarine telegraphy telegraphics telegraphy telephone market teleprinter teletypewriter teletypewriting telex the Big Board the Exchange third market ticker tape timekeeper timepiece timer transmitter tripes turnip typotelegraph typotelegraphy vermiform appendix viscera vitals watch watchworks wheat pit wire service works