ECG can be analyzed by studying components of the waveform. These waveform components indicate cardiac electrical activity. The first upward of the ECG tracing is the P wave. It indicates atrial contraction. The QRS complex begins with Q, a small downward deflection, followed by a larger upwards deflection, a peak (R); and then a downwards S wave. This QRS complex indicates ventricular depolarization and contraction.
chica (plural chicas) (Canada, US, informal) A Latin-American girl; a Latina. 2005, Magnolia Belle, Black Wolf: Lakota Man But, I thought you wanted to come with us. There are some hot chicas just waiting for the Black Wolf boys..
Definition of CHANGA. : a large brown mole cricket (Scapteriscus vicinus) native to South America but now widely distributed in the West Indies and southeastern U.S. where it is a destructive pest of many cultivated crops, feeding on crowns and stems and damaging roots by its burrowing. ADVERTISEMENT.his word doesn't usually appear in our free dictionary, but the definition from our premium Unabridged Dictionary is offered here on a limited basis.