A state of being uncertain or unstable.
A trembling or quivering, especially one caused by emotion.
A breathing place or hole; a nostril, as of a bird.
A cause of sudden excitement; a kick.
A slight quivering of the heart that accompanies a cardiac murmur.
To drill and thread in one operation, using a tool bit that cuts the hole and the threads in one series of computer-controlled movements.
To suddenly excite someone, or to give someone great pleasure; to (figuratively) electrify; to experience such a sensation.
To (cause something to) tremble or quiver.