(trigonometry) In a right triangle, the reciprocal of the tangent of an angle. Symbols: cot, ctg, or ctn

(transitive) To take somebody's fingerprints. / (transitive) To identify something uniquely by a combination of measurements.

plural of constructivism

(computer science, graph theory) An algorithm for finding shortest paths in a weighted graph with positive or negative edge weights (but with no negative cycles).