Tox`al*bu"min (?), n. [See Toxic; Albumin.] (Physiol. Chem.) Any of a class of toxic substances of protein nature; a toxin.
Tox`i*ca"tion (?), n. [L. toxicum a poison: cf. toxicatus smeared with poison.] Poisoning.
Tox*ic"i*ty (?), n. The quality or state of being toxic or poisonous; poisonousness.
Tox`i*co*gen"ic (?), a. [See Toxic, and -genic.] (Physiol. & Med.) Producing toxic products; as, toxicogenic germs or bacteria.
Tox"oid (?), n. [Toxin + - oid.] (Physiol. Chem.) An altered form of a toxin, possessing little or no toxic power.
Trace (?), n. (Mech.) A connecting bar or rod, pivoted at each end to the end of another piece, for transmitting motion, esp. from one plane to another; specif., such a piece in an organ-stop action to transmit motion from the trundle to the lever actuating the stop slider.
Trac"er (?), n. 1. A person engaged (esp. in the express or railway service) in tracing, or searching out, missing articles, as packages or freight cars.
2. An inquiry sent out (esp. in transportation service) for a missing article, as a letter or an express package.
Tra"cer*y, n. A tracing of lines; a system of lines produced by, or as if by, tracing, esp. when interweaving or branching out in ornamental or graceful figures. "Knit with curious tracery." Burns.
||Tra`che*i"tis (?), n. [NL. See Trachea; -itis.] (Med.) Inflammation of the trachea, or windpipe.
||Tra*cho"ma (?), n. [NL., fr. Gr. &?; roughness, fr. &?; rough.] (Med.) Granular conjunctivitis due to a specific micrococcus. -- Tra*chom"a*tous (#), a.
Track"age, n. (Railroads) Lines of track, collectively; as, an extensive trackage.
Track"lay`er (?), n. (Railroads) Any workman engaged in work involved in putting the track in place. [U. S. & Canada] -- Track"lay`ing, n.
Track"man (?), n.; pl. - men (&?;). (Railroads) One employed on work on the track; specif., a trackwalker.
Track"walk`er (?), n. (Railroads) A person employed to walk over and inspect a section of tracks.
Track"way` (?), n. Any of two or more narrow paths, of steel, smooth stone, or the like, laid in a public roadway otherwise formed of an inferior pavement, as cobblestones, to provide an easy way for wheels.
Trac"tion*al (?), a. Of or relating to traction.
Traction wheel. (Mach.) (a) A locomotive driving wheel which acts by friction adhesion to a smooth track. (b) A smooth-rimmed friction wheel for giving motion to an endless link belt or the like.
Tract"or (?), n. An aëroplane flying machine having one or more tractor screws.
{ Tractor screw or propeller }. (Aviation) A propeller screw placed in front of the supporting planes of an aëroplane instead of behind them, so that it exerts a pull instead of a push. Hence, Tractor monoplane, Tractor biplane, etc.
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Trade name. 1. (a) The name by which an article is called among traders, etc.; as, tin spirits is a common trade name in the dyeing industry for various solutions of tin salts. (b) An invented or arbitrary adopted name given by a manufacturer or merchant to an article to distinguish it as produced or sold by him.
2. The name or style under which a concern or firm does business. This name becomes a part of the good will of a business; it is not protected by the registration acts, but a qualified common-law protection against its misuse exists, analogous to that existing in the case of trade-marks.
Traf"fic mile. (Railroad Accounting) Any unit of the total obtained by adding the passenger miles and ton miles in a railroad's transportation for a given period; -- a term and practice of restricted or erroneous usage.
Traffic mile is a term designed to furnish an excuse for the erroneous practice of adding together two things (ton miles and passenger miles) which, being of different kinds, cannot properly be added.
Hadley.
Trail"er, n. A car coupled to, and drawn by, a motor car in front of it; -- used esp. of such cars on street railroads. Called also trail car.
Trail"ing edge. (Aëronautics) A following edge. See Advancing edge, above.
Trail rope. (Aëronautics) Same as Guide rope, above.
Train (?), n. 1. A heavy long sleigh used in Canada for the transportation of merchandise, wood, and the like.
2. (Mil.) The aggregation of men, animals, and vehicles which accompany an army or one of its subdivisions, and transport its baggage, ammunition, supplies, and reserve materials of all kinds.
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.