positive crankcase ventilation


noun Automotive.

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

QUIZZES

Can You Remember Your Favorite Words Of The Day From March?
Even if you’re a habitué of Word of the Day, you haven’t seen our March words in these ways! Challenge yourself to our comprehensive quiz!
Question 1 of 15
What does "habitué" mean?
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020