filterable virus
noun
a virus particle small enough to pass through a filter of diatomaceous earth or porcelain, which will not pass bacteria: chiefly historical or an informal indicator of size, as synthetic membrane filters now permit passage of the smallest virus.
Origin of filterable virus
First recorded in 1910–15
Words nearby filterable virus
filter paper,
filter press,
filter pump,
filter tip,
filterable,
filterable virus,
filtering operation,
filth,
filthy,
filthy lucre,
filtrable