Meaning of PERCOLATION in English

PERCOLATION

ˌ ̷ ̷ ̷ ̷ˈlāshən noun

( -s )

Etymology: Latin percolation-, percolatio, from percolatus + -ion-, -io -ion

1.

a. : the slow passage of a liquid through a filtering medium : leaching , seepage

percolation of water downward through the soil — Russell Lord

b. : a method of extraction or purification by means of filtration

decolorization of lubricating oils by percolation

c. : the process of brewing coffee by causing hot water to pass through it in a percolator

d. : the process of extracting the soluble constituents of a powdered drug by passage of a liquid through it

2. : diffusion by gradual spreading or penetration

a gradual percolation of Scandinavian motives into sculpture — O. Elfrida Saunders

the percolation downward through the whole middle class of the sense of freedom — Roy Lewis & Angus Maude

Webster's New International English Dictionary.      Новый международный словарь английского языка Webster.