a yellow-white, more or less viscid substance produced by suppuration and found in abscesses, sores, etc., consisting of a liquid plasma in which white blood cells are suspended. Origin of pus. Latin.
Definition of task. 1  1a : a usually assigned piece of work often to be finished within a certain timeb : something hard or unpleasant that has to be donec : duty, function. 2  2 : subjection to adverse criticism : reprimand âused in the expressions to take, call, or bring to task.
Synonym Discussion of task. task, duty, job, chore, stint, assignment mean a piece of work to be done. task implies work imposed by a person in authority or an employer or by circumstance charged with a variety of tasks. duty implies an obligation to perform or responsibility for performance the duties of a lifeguard.