An obstruction causing an embolism: a blood clot, air bubble or other matter carried by the bloodstream and causing a blockage or occlusion of a blood vessel.
The structure on the end of the palp of male arachnids which contains the opening to the ejaculatory duct.
A sudden attack, blow, stroke, or seizure, as in a sunstroke, the sting of an insect, pulsation of an artery, etc.
The pulse.
The stress of voice laid upon an accented syllable of a word. Compare arsis.
In conducting, the indication of a musical event, most often the beat of the tempo or the entry of a section of the orchestra.