Paroxysmal atrial tachycardia may be caused by several different things. The fast rate may be triggered by a premature atrial beat that sends an impulse along an abnormal electrical path to the ventricles.Other causes stem from anxiety, stimulants, overactive thyroid, and in some women, the onset of menstruation.aroxysmal atrial tachycardia may be caused by several different things. The fast rate may be triggered by a premature atrial beat that sends an impulse along an abnormal electrical path to the ventricles.
Definition of mooch for English Language Learners. : to ask for and get things from other people without paying for them or doing anything for them.
GCIDE(0.00 / 0 votes)Rate this definition: Moho(n.) The boundary between the earth's crust and the semiliquid mantle beneath. It varies in depth from 3 miles beneath the surface at certain points in the ocean to over 25 miles under certain parts of continents.