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bitual passage of anything; a groove in which anything runs. Also used figuratively. in a rut.

A kind of turnip commonly with a large and long or ovoid yellowish root; a Swedish turnip. See Turnip.

Of or pertaining to plants of a natural order (Rutacæ) of which the rue is the type, and which includes also the orange, lemon, dittany, and buchu.

A salt of rutic acid.

Sorrow for the misery of another; pity; tenderness. [Poetic] "They weep for ruth." Chaucer. "Have ruth of the poor." Piers Plowman. To stir up gentle ruth, Both for her noble blood, and for her tender youth. Spenser.

Pertaining to, or containing, ruthenium; specifically, designating those compounds in which it has a higher valence as contrasted with ruthenious compounds.

Pertaining to, or containing, ruthenium; designating those compounds in which it has a lower valence as contrasted with ruthenic compounds.

A rare element of the light platinum group, found associated with platinum ores, and isolated as a hard, brittle steel-gray metal which is very infusible. Symbol Ru. Atomic weight 103.5. Specific gravity 12.26. See Platinum metals, under Platinum.

Full of ruth; as:

Having no ruth; cruel; pitiless. Their rage the hostile bands restrain, All but the ruthless monarch of the main. Pope. -- Ruth"less*ly, adv. -- Ruth"less*ness, n.

pertaining to, or obtained from, rue (Ruta); as, rutic acid, now commonly called capric acid.

Having a reddish glow; shining. Parchments . . . colored with this rutilant mixture. Evelin.

To shine; to emit rays of light. [Obs.] Ure.

A mineral usually of a reddish brown color, and brilliant metallic adamantine luster, occurring in tetragonal crystals. In composition it is titanium dioxide, like octahedrite and brooklite.

Any species of lamellicorn beetles belonging to Rurila and allied genera, as the spotted grapevine beetle (Pelidnota punctata).

A glucoside resembling, but distinct from, quercitrin. Rutin is found in the leaves of the rue (Ruta graveolens) and other plants, and obtained as a bitter yellow crystalline substance which yields quercitin on decomposition.

A disaccharide present in glycosides. Prepared from rutin by hydrolysis with rhamnodiastase. 6-O-a-L-rhamnosyl-D-glucose; C12H22O10.

A horseman or trooper. [Obs.] Such a regiment of rutters Never defied men braver. Beau. & Fl.

An old crafty fox or beguiler -- a word of contempt. [Obs.] Cotgrave.

A chart of a course, esp. at sea. [Obs.]