Fiars, fī′arz, n.pl. (Scot.) the prices of grain legally struck or fixed for the year at the Fiars Court, so as to regulate the payment of stipend, rent, and prices not expressly agreed upon. [Conn. with fiar, the holder of a fee (q.v.).]

Fiasco, fi-as′ko, n. a failure in a musical performance: a failure of any kind. [It. fiasco, bottle, perh. from L. vasculum, a little vessel, vas, a vessel.]

Fiat, fī′at, n. a formal or solemn command: a short order or warrant of a judge for making out or allowing processes, letters-patent, &c.—(Spens.) Fī′aun.—v.t. to sanction, [L. 'let it be done,' 3d pers. sing. pres. subj. of fiĕri, passive of facĕre, to do.]

Fib, fib, n. something said falsely: a mild expression for a lie.—v.i. to tell a fib or lie: to speak falsely:—pr.p. fib′bing; pa.p. fibbed.—ns. Fib′ber, one who fibs; Fib′bery (rare), the habit of fibbing; Fib′ster, a fibber. [An abbrev. of fable.]

Fibre, fī′bėr, n. a conglomeration of thread-like tissue such as exists in animals or vegetables: any fine thread, or thread-like substance: material, substance.—adjs. Fī′bred, having fibres; Fī′breless, having no fibres; Fī′briform, fibrous in form or structure.—ns. Fī′bril, a small fibre; one of the extremely minute threads composing an animal fibre; Fibril′la, a fibril, filament.—n.pl. Fibril′læ.—n. Fibrillā′tion, the process of becoming fibrillated.—adj. Fī′brillous, formed of small fibres.—ns. Fī′brin, a proteid substance which appears in the blood after it is shed, and by its appearance gives rise to the process of coagulation or clotting; Fibrinā′tion, the process of adding fibrin to the blood.—adj. Fī′brinous, of or like fibrin.—n. Fibrocar′tilage, a firm elastic material like fibrous tissue and cartilage.—adj. Fī′broid, of a fibrous character.—ns. Fī′broin, the chief chemical constituent of silk, cobwebs, and the horny skeleton of sponges; Fibrō′ma, a tumour or growth consisting largely of fibrous matter; Fibrō′sis, a morbid growth of fibrous matter.—adj. Fī′brous, composed of fibres.—n. Fī′brousness. [Fr.,—L. fibra, a thread.]

Fibroline, fib′rō-lēn, n. a yarn manufactured from the waste in hemp, flax, and jute spinning works, for backs of carpets, &c.

Fibula, fib′ū-la, n. a clasp or buckle; the outer of the two bones from the knee to the ankle.—adjs. Fib′ular, Fib′ulate, Fib′ulous. [L.]

Fichu, fē-shü′, n. a three-cornered cape worn over the shoulders, the ends crossed upon the bosom: a triangular piece of muslin, &c., for the neck. [Fr.]

Fickle, fik′l, adj. inconstant: changeable.—n. Fick′leness. [A.S. ficol; gefic, fraud.]

Fico, fē′ko, n. (Shak.) a motion of contempt by placing the thumb between two fingers. [It.,—L.]