FILTER n.
id or impure matter held in suspension; a chamber or device containing such substance; a strainer; also, a similar device for purifying air. Filter bed, a pond, the bottom of which is a filter composed of sand gravel. -- Filter gallery, an underground gallery or tunnel, alongside of a stream, to collect the water that…
FLAG n. 2 definitions
the flag officer's share of prize money. -- Flag station (Railroad), a station at which trains do not stop unless signaled to do so, by a flag hung out or waved. -- National flag, a flag of a particular country, on which some national emblem or device, is emblazoned. -- Red flag, a flag of a red color, displayed as…
FORGE n.
lan. -- Forge cinder, the dross or slag form a forge or bloomary. -- Forge rolls, Forge train, the train of rolls by which a bloom is converted into puddle bars. -- Forge wagon (Mil.), a wagon fitted up for transporting a blackmith's forge and tools. -- Portable forge, a light and compact blacksmith's forge, with b…