positive crankcase ventilation
a means of reducing air pollution by directing the fumes from the crankcase of an engine into the intake manifold, so that they will be channeled into the cylinders and burned. Abbreviation: PCV
Negative Or Positive Reinforcement: Which Is Better?Whether positive reinforcement or negative reinforcement is better all depends on the situation and the personality of the receiving person.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019