Tick"er (?), n. [See Tick.] One who, or that which, ticks, or produces a ticking sound, as a watch or clock, a telegraphic sounder, etc.

Tick"er, n. A telegraphic receiving instrument that automatically prints off stock quotations (

Tick"er (?), n. [See Tick.] One who, or that which, ticks, or produces a ticking sound, as a watch or clock, a telegraphic sounder, etc.

Tick"er, n. A telegraphic receiving instrument that automatically prints off stock quotations (

• A measuring or reporting device, particularly one which makes a ticking sound as the measured events occur.
        The ticker was showing an increased rate of flow.
  
• A stock ticker.
        I checked the prices on the ticker one last time before placing the trade.
  
• A news ticker.
        To my surprise, the ticker showed that the deal had already gone through.
  
• (Colloquial) The heart.
        My ticker gave out and I had to go to the hospital for surgery.