1. (

• heart ,
• pump ,
• ticker

) the hollow muscular organ located behind the sternum and between the lungs; its rhythmic contractions move the blood through the body; "he stood still, his heart thumping wildly" ;

2. (

• watch ,
• ticker ,

) a small portable timepiece ;

3. (

• ticker ,
• stock_ticker

) a character printer that automatically prints stock quotations on ticker tape ;