A fool, a tit.
A woman's breast.
A gypsy.
very small, tiny
A very short space of time; an instant.
A periodic signal generated by hardware or software to indicate normal operation or to synchronize other parts of a system.
One pulsation of the heart; especially an irregular one, hence the emotion which causes it.
A driving impulse or vital force; the vital center of something.
The rhythm at which a heart pulsates, a cardiac indicator.