\Strain"er\, n.
1. One who strains.

2. That through which any liquid is passed for purification
   or to separate it from solid matter; anything, as a screen
   or a cloth, used to strain a liquid; a device of the
   character of a sieve or of a filter; specifically, an
   openwork or perforated screen, as for the end of the
   suction pipe of a pump, to prevent large solid bodies from
   entering with a liquid.