Duf"fer, n. One who duffs cattle, etc. [Australia]

Unluckily, cattle stealers are by no means so rare as would be desirable; they are locally known as duffers.

Baden-Powell.

{ Du*kho*bors" (?), Du*kho*bor"tsy (?) }, n. pl. [Russ. dukhobortsy spirit wrestlers; dukh spirit + bortsy wrestlers.] A Russian religious sect founded about the middle of the 18th century at Kharkov. They believe that Christ was wholly human, but that his soul reappears from time to time in mortals. They accept the Ten Commandments and the "useful" portions of the Bible, but deny the need of rulers, priests, or churches, and have no confessions, icons, or marriage ceremonies. They are communistic, opposed to any violence, and unwilling to use the labor of animals. Driven out of Russia proper, many have emigrated to Cyprus and Canada. See Raskolnik, below.

Dum"dum bul"let (?). (Mil.) A kind of manstopping bullet; -- so named from Dumdum, in India, where bullets are manufactured for the Indian army.

Dump"y lev"el. (Surv.) A level having a short telescope (hence its name) rigidly fixed to a table capable only of rotatory movement in a horizontal plane. The telescope is usually an inverting one. It is sometimes called the Troughton level, from the name of the inventor, and a variety improved by one Gavatt is known as the Gavatt level.

Du"o*graph (?), n. [L. duo two + -graph.] (Photo-engraving) A picture printed from two half-tone plates made with the screen set at different angles, and usually printed in two shades of the same color or in black and one tint.

Du"o*tone (?), n. [L. duo two + tone.] (Photoengraving) Any picture printed in two shades of the same color, as duotypes and duographs are usually printed.

Du"o*type (?), n. [L. duo two + type.] (Photoengraving) A print made from two half- tone plates made from the same negative, but etched differently.

Du"plex (?), v. t. [See Duplex, a.] (Teleg.) To arrange, as a telegraph line, so that two messages may be transmitted simultaneously; to equip with a duplex telegraphic outfit.

Dys*pro"si*um (?), n. [NL., fr. Gr. dyspro`sitos hard to get at.] (Chem.) An element of the rare earth-group. Symbol Dy; at. wt., 162.5.

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