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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 filters through the intervening sand and gravel; -- called also infiltratio…

embling in shape the fin of a fish, though often with a cigar-shaped bulb of lead at the bottom, and generally made of metal. Its use is to ballast the boat and also to enable her to sail close to the wind and to make the least possible leeway by offering great resistance to lateral motion through the water.…

To discover by sounding; as, to find bottom.

loth, of loose texture. Shak. Adam's flannel. (Bot.) See under Adam. -- Canton flannel, Cotton flannel. See Cotton flannel, under Cotton.

re parts; viz., the cope or top; sometimes, the cheeks, or middle part; and the drag, or bottom part. When there are one or more cheeks, the flask is called a three part flask, four part flask, etc. Erlenmeyer flask, a thin glass flask, flat-bottomed and cone-shaped to allow of safely shaking its contents laterally wit…

A flat-bottomed boat, without keel, and of small draught.

A boat with a flat bottom and square ends; -- used for the transportation of bulky freight, especially in shallow waters.

portion of flax from the fibrous. -- Flax comb, a hatchel, hackle, or heckle. -- Flax cotton, the fiber of flax, reduced by steeping in bicarbinate of soda and acidulated liquids, and prepared for bleaching and spinning like cotton. Knight. -- Flax dresser, one who breaks and swingles flax, or prepares it for the s…

The fine web of cotton or wool removed by the doffing knife from the cylinder of a carding machine. Fleece wool, wool shorn from the sheep. -- Golden fleece. See under Golden.

Woolen or cotton refuse (sing. or pl.), old rags, etc., reduced to a degree of fineness by machinery, and used for stuffing unpholstered furniture.

The bottom or lower part of any room; the part upon which we stand and upon which the movables in the room are supported.

A platform; the bottom of a room; a floor; pavement. See Floor, n. Addison.

To develop; to make thrive; to expand. [Obs.] Bottoms of thread . . . which with a good needle, perhaps flourished into large works. Bacon.

Light down, such as rises from cotton, fur, etc.; very fine lint or hair. Dickens.

The lowest part or base; the ground part; the bottom, as of a mountain or column; also, the last of a row or series; the end or extremity, esp. if associated with inferiority; as, the foot of a hill; the foot of the procession; the foot of a class; the foot of the bed. And now at foot Of heaven's ascent they lift their…

A narrow cotton lace, without figures.

The settlings of oil, molasses, etc., at the bottom of a barrel or hogshead. Simmonds.

r pit, a plant bed having an under layer of fermenting manure, the fermentation yielding bottom heat for forcing plants; a hotbed. -- Forcing engine, a fire engine. -- Forcing fit (Mech.), a tight fit, as of one part into a hole in another part, which makes it necessary to use considerable force in putting the two pa…

ch a dexterous proclivity, as his teachers were fain to restrain his forwardness. Sir H. Wotton.

To stop (a leak in a ship at sea) by drawing under its bottom a thrummed sail, so that the pressure of the water may force it into the crack. Totten.