The first complex of the electrocardiogram, representing depolarisation of the atria; if the P wave is retrograde or ectopic in axis or form, it is labelled P'. ... (05 Mar 2000) ...
Found on http://www.mondofacto.com/facts/dictionary?P+wave
a positive deflection in the normal surface electrocardiogram produced by the wave of excitation passing over the atria; it represents atrial depolarization, an intrinsic atrial event.
Found on http://www.mercksource.com/pp/us/cns/cns_hl_dorlands.jspzQzpgzEzzSzppdocszS
A seismic body wave that shakes the ground back and forth in the same direction and the opposite direction as the direction the wave is moving. P waves are also known as compressional waves.
Found on http://www.daviddarling.info/encyclopedia/P/P_wave.html
Type: Term Definitions: 1. the first complex of the electrocardiogram, during sinus and atrial rhythms, representing depolarization of the atria; if the P wave is retrograde or ectopic in axis or form, it is labeled P′.
Found on http://www.medilexicon.com/medicaldictionary.php?t=99692
Also called primary, longitudinal, irrotational, push, pressure, dilatational, compressional, or push-pull wave. P waves are the fastest body waves and arrive at stations before the S waves, or secondary waves. Their velocity in the crust varies between 5.0 and 7.0 km/s. The waves carry energy throu...
Found on http://earthquakescanada.nrcan.gc.ca/info-gen/glossa-eng.php
P wave. A seismic body wave that shakes the ground back and forth in the same direction and the opposite direction as the direction the wave is moving.
Found on http://www.sciencemaster.com/physical/item/earthquake_glossary.php
List of albums released by Immortal Records. ...
Found on http://en.wikipedia.org/wiki/P_Wave
[electrocardiography] In electrocardiography, during normal atrial depolarization, the main electrical vector is directed from the SA node towards the AV node, and spreads from the right atrium to the left atrium. This turns into the P wave on the ECG. The P wave is upright in II, III, and a...
Found on http://en.wikipedia.org/wiki/P_wave_(electrocardiography)
(primary wave, compressional wave) A seismic body wave that involves particle motion, alternating compression and expansion, in the direction of wave propagation. It is the fastest seismic wave. compare S-wave.
Found on http://www.ge-at.iastate.edu/glossary-of-geologic-terms/
P-waves are a type of elastic wave, called seismic waves in seismology, that can travel through a continuum. If the continuum is made up of gases (as sound waves), solids and liquids, including the Earth. P-waves could be produced by earthquakes and recorded by seismographs. The name P-wave is ofte...
Found on http://en.wikipedia.org/wiki/P-wave
A seismic body wave which propagate like sound waves, i.e. by compression and extension in the direction of travel. They can travel through solids and liquids and are the fastest of the seismic waves.
Found on http://www.geologyrocks.co.uk/glossary/letter/m
A seismic wave that moves material in push-pull fashion in the direction of its travel. This type of seismic wave can travel through solids, liquids, and gases. Also called a primary wave.
Found on http://www.physicalgeography.net/physgeoglos/p.html
In seismology, a class of seismic wave that passes through the Earth in the form of longitudinal pressure waves at speeds of 6–7 kps/3.7–4.4 mps in the crust and up to 13 kps/8 mps in deeper layers, the speed depending on the density of the rock. P-waves from an earthquake travel faster than S-w...
Found on http://www.talktalk.co.uk/reference/encyclopaedia/hutchinson/m0056449.html
The primary or fastest wave traveling away from a seismic event through the solid rock, and consisting of a train of compressions and dilations of the material.
Found on http://www.scientificpsychic.com/etc/geology-glossary.html
Primary seismic waves. The fastest set of earthquake vibrations. They move through the Earth in comp
Found on http://www.superglossary.com/Glossary/Science/Geology/
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