Fumaric acid(Chem.), a widely occurring organic acid, extracted from fumitory as a white crystallline substance, C2H2(CO2H)2, and produced artificially in many ways, as by the distillation of malic acid; boletic acid. It is found also in the lichen, Iceland moss, and hence was also called lichenic acid.

(Fu"ma*rine) n. [L. fumus smoke, fume.] (Chem.) An alkaloid extracted from fumitory, as a white crystalline substance.

(Fu"ma*role) n. [It. fumaruola, fr. fumo smoke, L. fumus: cf. F. fumerolle, fumarolle.] A hole or spot in a volcanic or other region, from which fumes issue.

(Fu"ma*to*ry) n. See Fumitory. [Obs.]

(Fum"ble) v. i. [imp. & p. p. Fumbled ; p. pr. & vb. n. Fumbling ] [Akin to D. fommelen to crumple, fumble, Sw. fumla to fusuble, famla to grope, Dan. famle to grope, fumble, Icel. falme, AS. folm palm of the hand. See Feel, and cf. Fanble, Palm.]

1. To feel or grope about; to make awkward attempts to do or find something.

Adams now began to fumble in his pockets.

2. To grope about in perplexity; to seek awkwardly; as, to fumble for an excuse. Dryden.

My understanding flutters and my memory fumbles.

Alas! how he fumbles about the domains.

3. To handle much; to play childishly; to turn over and over.

I saw him fumble with the sheets, and play with flowers.

(Fum"ble), v. t. To handle or manage awkwardly; to crowd or tumble together. Shak.

(Fum"bler) n. One who fumbles.

(Fum"bling*ly) adv. In the manner of one who fumbles.

(Fume) n. [L. fumus; akin to Skr. dhuma smoke, dhu to shake, fan a flame, cf. Gr. qy`ein to sacrifice, storm, rage, qy`mon, qy`mos, thyme, and perh. to E. dust: cf. OF. fum smoke, F. fumée. Cf. Dust, n., Femerell, Thyme.]

(Fum) v. i. To play upon a fiddle. [Obs.]

Follow me, and fum as you go.
B. Jonson.

(Fu*ma"cious) a. [From Fume.] Smoky; hence, fond of smoking; addicted to smoking tobacco.

(Fu*made" Fu*ma"do) n.; pl. Fumades Fumadoes [Sp. fumodo smoked, p. p. of fumar to smoke, fr. L. fumare. See Fume, v. i.] A salted and smoked fish, as the pilchard.

(Fu"mage) n. [OF. fumage, fumaige, fr. L. fumus smoke.] Hearth money.

Fumage, or fuage, vulgarly called smoke farthings.

(Fu"ma*rate) n. (Chem.) A salt of fumaric acid.

(Fu*mar"ic) a. (Chem.) Pertaining to, or derived from, fumitory (Fumaria officinalis).

  By PanEris using Melati.

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