Non-fiction novels can have both more or less words but most publishable novels for the adult market, again, should be at least 60,000 words. Young adult and children's market novels are considerably shorter. They run on average from 45,000 to 75,000 words.
a small downward deflection in the arterial pulse or pressure contour immediately following the closure of the semilunar valves, sometimes used as a marker for the end of systole or the ejection period. Called also dicrotic notch.
The P Wave. The first deflection of the heartbeat is a small upward wave called the P wave. It indicates atrial depolarisation. The initial portion of the P wave is largely a reflection of right atrial depolarisation and the terminal portion is largely a reflection of left atrial depolarisation.