Part 253

Train dispatcher. An official who gives the orders on a railroad as to the running of trains and their right of way.

Tram (?), v. t. [imp. & p. p. Trammed (?); p. pr. & vb. n. Tramming.] To convey or transport on a tramway or on a tram car.

Tram, v. i. To operate, or conduct the business of, a tramway; to travel by tramway.

Tram, n. (Mech.) Same as Trammel, n., 6.

||Tra"ma (?), n. [L., woof.] (Bot.) The loosely woven substance which lines the chambers within the gleba in certain Gasteromycetes.

Tram"mel wheel`. (Mach.) A circular plate or a cross, with two or more cross grooves intersecting at the center, used on the end of a shaft to transmit motion to another shaft not in line with the first.

||Tra`mon*ta"na (?), n. [It. See Tramontane.] (Meteor.) A dry, cold, violent, northerly wind of the Adriatic.

Tram"rail` (?), n. (Mach.) An overhead rail forming a track on which a trolley runs to convey a load, as in a shop.

Tram"way`, n. A street railway or interurban railway for local traffic, on which cable cars, or trolley cars, etc., are used, in distinction from an extended railway line for trains drawn by steam or electric locomotives.

Trans*form"er, n. -- Multiple transformer. (Elec.) (a) A transformer connected in multiple or in parallel with the primary circuit. (b) A transformer with more than one primary or more than one secondary coil. -- Parallel transformer (Elec.), a transformer connected in parallel.

Trans*isth"mi*an (?), a. Extending across an isthmus, as at Suez or Panama.

Tran*si"tion zone. (Biogeography) The zone lying between the Boreal and Sonoran zones of North America. It includes an eastern or humid subdivision and a western arid one of corresponding temperature comprising the northern Great Plains and the lower slopes of the mountains of the western United States and Mexico. Called also Neutral zone.

Trans*mis"sion dy`na*mom"e*ter. (Mach.) A dynamometer in which power is measured, without being absorbed or used up, during transmission.

Trans*mis"sion*ist, n. An adherent of a theory, the transmission theory, that the brain serves to "transmit," rather than to originate, conclusions, and hence that consciousness may exist independently of the brain.

Trap shooting. (Sport) Shooting at pigeons liberated, or glass balls or clay pigeons sprung into the air, from a trap. -- Trap shooter.

||Tra`vail" (?), n. [Cf. F. travail, a frame for confining a horse, or OF. travail beam, and E. trave, n. Cf. Travail, v. i.] Same as Travois.

Trav"erse drill. (Mach.) A machine tool for drilling slots, in which the work or tool has a lateral motion back and forth; also, a drilling machine in which the spindle holder can be adjusted laterally.

||Tra`vois" (?), n. [Cf. Travail.] 1. A primitive vehicle, common among the North American Indians, usually two trailing poles serving as shafts and bearing a platform or net for a load.

On the plains they will have horses dragging travoises; dogs with travoises, women and children loaded with impediments.

Julian Ralph.

2. A logging sled. [Northern U. S. & Canada]

Treas"ur*y stock. (Finance) Issued stock of an incorporated company held by the company itself.

Tre*cen"tist (?), n. A member of the trecento, or an imitator of its characteristics.

||Tre*cen"to (?), n. & a. [It., three hundred, abbr. for thirteen hundred.] The fourteenth century, when applied to Italian art, literature, etc. It marks the period of Dante, Petrarch, and boccaccio in literature, and of Giotto in painting.

Tree burial. Disposal of the dead by placing the corpse among the branches of a tree or in a hollow trunk, a practice among many primitive peoples.

Tree calf. A bright brown polished calfskin binding of books, stained with a conventional treelike design.

Tref (?), a. [Yiddish, fr. Heb. trphh an animal torn by wild beasts.] Ceremonially unclean, according to the Jewish law; -- opposed to kosher.

Trek (?), v. i. [imp. & p. p. Trekked (?); p. pr. & vb. n. Trekking.] [Written also treck.] [D. trekken. See Track, n.] [South Africa] 1. To draw or haul a load, as oxen.