Filibuster, Fillibuster, fil′i-bus-tėr, n. a lawless military or piratical adventurer, as in the West Indies: a buccaneer.—v.i. to obstruct legislation wantonly by endless speeches, motions, &c.—n. Fil′ibusterism, the character or actions of a filibuster. [Sp. filibustero, through Fr. flibustier, fribustier, from Dut. vrijbueter, vrijbuiter (cf. Eng. freebooter, Ger. freibeuter), from vrij, free, buit, booty.]

Filices, fil′i-sez, n.pl. the ferns.—adjs. Fil′ical; Filic′iform; Fil′icoid.

Filiform, fil′i-form, adj. having the form of a filament: long and slender. [L. filum, thread, forma, form.]

Filigree, fil′i-grē, n. a kind of ornamental metallic lacework of gold and silver, twisted into convoluted forms, united and partly consolidated by soldering—earlier forms, Fil′igrain, Fil′igrane.—adj. Fil′igreed, ornamented with filigree. [Fr. filigrane—It. filigrana—L. filum, thread, granum, a grain.]

Filioque, fil-i-ō′kwe, n. the clause inserted into the Nicene Creed at Toledo in 589, which asserts that the Holy Ghost proceeds from the Son, as well as from the Father—not accepted by the Eastern Church. [L., 'and from the son.']

Fill, fil, v.t. to make full: to put into until all the space is occupied: to supply abundantly: to satisfy: to glut: to perform the duties of: to supply a vacant office.—v.i. to become full: to become satiated.—n. as much as fills or satisfies: a full supply: a single charge of anything.—ns. Fill′er, he who, or that which, fills: a vessel for conveying a liquid into a bottle; Fill′ing, anything used to fill up, stop a hole, to complete, &c., as the woof, in weaving: supply. [A.S. fyllan, fullianful, full.]

Fill, fil, n. (Shak.) the thill or shaft of a cart or carriage. [See Thill.]

Fillet, fil′et, n. a little string or band, esp. to tie round the head: meat or fish boned and rolled, roasted or baked: a piece of meat composed of muscle, esp. the fleshy part of the thigh: (archit.) a small space or band used along with mouldings.—v.t. to bind or adorn with a fillet:—pr.p. fill′eting; pa.p. fill′eted. [Fr. filet, dim. of fil, from L. filum, a thread.]

Fillibeg, Philibeg, fil′i-beg, n. the kilt, the dress or petticoat reaching nearly to the knees, worn by the Highlanders of Scotland. [Gael. feileadhbeagfeileadh, plait, fold, beag, little.]

Fillip, fil′ip, v.t. to strike with the nail of the finger, forced from the ball of the thumb with a sudden jerk: to incite, drive:—pr.p. fill′iping; pa.p. fill′iped.—n. a jerk of the finger from the thumb: anything which excites. [A form of flip.]