perchloromethane
— Noun
– English
~ a colorless nonflammable liquid used as a solvent for fats and oils; because of its toxicity its use as a cleaning fluid or fire extinguisher has declined
Percidae
— Noun
– English
~ active freshwater fishes; true perches and pike perches
Perciformes
— Noun
– English
~ one of the largest natural groups of fishes of both marine and fresh water: true perches; basses; tuna
percolation
— Noun
– English
~ the filtration of a liquid for extraction or purification
percolation
— Noun
– English
~ the slow passage of a liquid through a filtering medium; "the percolation of rainwater through the soil"; "the infiltration of seawater through the lava"