FIGURATE a.
er may be formed in the same manner, and so on, the numbers in the resulting series being such that points representing them are capable of symmetrical arrangement in different geometrical figures, as triangles, squares, pentagons, etc.
FILTER n.
nse it from the solid 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 col…
FLINT n.
. -- Flint implements (Archæol.), tools, etc., employed by men before the use of metals, such as axes, arrows, spears, knives, wedges, etc., which were commonly made of flint, but also of granite, jade, jasper, and other hard stones. -- Flint mill. (a) (Pottery) A mill in which flints are ground. (b) (Mining) An obso…
FLOATING CHARGE; FLOATING LIEN n.
A charge, lien, etc., that successively attaches to such assets as a person may have from time to time, leaving him more or less free to dispose of or encumber them as if no such charge or lien existed.