<p><strong>Noun</strong></p><ul><li>A technique of ascertaining the location of a point by taking bearings from the point on two other points of known location.</li><li>The excision of all or part of an organ or tissue.</li><li>The total opposition to alternating current by an electric circuit, equal to the square root of the sum of the squares of the resistance and reactance of the circuit, usually expressed in ohms.</li><li>Something that impedes; an obstacle or hindrance.</li></ul><p><strong>End of Response</strong></p>