Part 259

U"loid (?), a. [Written also ouloid.] [Gr. &?; scar + -oid.] (Med.) Resembling a scar; scarlike.

Ul`tra*gas"e*ous (?), a. [Pref. ultra + gaseous.] (Physics) Having the properties exhibited by gases under very low pressures (one millionth of an atmosphere or less). Matter under this condition, which has been termed the fourth state of matter, is sometimes called radiant matter.

Un`as*sent"ed (?), a. Not assented; -- said specif. of stocks or bonds the holders of which refuse to deposit them by way of assent to an agreement altering their status, as in a readjustment.

Un"cle, n. An eldery man; -- used chiefly as a kindly or familiar appellation, esp. (Southern U. S.) for a worthy old negro; as, "Uncle Remus." [Colloq.]

Plain old uncle as he [Socrates] was, with his great ears, -- an immense talker.

Emerson.

Un*cut" vel"vet. A fabric woven like velvet, but with the loops of the warp threads uncut.

Un"der*cut` (?), p.a. Cut away below.

Un"der*ground` in*sur"ance. Wildcat insurance.

Un"der*load start`er. (Elec.) A motor starter provided with an underload switch.

Underload switch. (Elec.) A switch which opens a circuit when the current falls below a certain predetermined value, used to protect certain types of motors from running at excessive speed upon decrease of load.

Un`der*plant" (?), v. t. [imp. & p. p. Underplanted; p. pr. & vb. n. Underplanting.] To plant under; specif. (Forestry), to plant (young trees) under an existing stand.

Un`der*run" (?), v. t. -- To underrun a hose (Naut.), to lift it up at one end, then walk along shifting one hand after another so that the water will run out.

{ Un"der*slung` (?), Un"der*hung" (?) }, a. Of an automobile body, suspended from the springs in such a manner that the frame of the chassis is below the axles, the object being to lower the center of gravity of the car.

Un`em*ploy"ment (?), n. Quality or state of being not employed; -- used esp. in economics, of the condition of various social classes when temporarily thrown out of employment, as those engaged for short periods, those whose trade is decaying, and those least competent.

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U`ni*va"ri*ant (?), a. (Chem.) Having one degree of freedom or variability.

U`ni*ver"si*ty ex*ten"sion. The extension of the advantages of university instruction by means of lectures and classes at various centers.

Un*list"ed (?), a. Not listed; specif. (New York Stock Exchange), admitted to quotation in the unlisted department, that is, admitted to be dealt in on the floor, but not to the "regular list."

Un*par"don*a*ble (?), a. Not admitting of pardon or forgiveness; inexcusable.

Up"keep` (?), n. The act of keeping up, or maintaining; maintenance. "Horse artillery . . . expensive in the upkeep." Scribner's Mag.

Small outlays for repairs or upkeep of buildings.

A. R. Colquhoun.

Up"-o`ver, a. (Mining & Civil Eng.) Designating a method of shaft excavation by drifting to a point below, and then raising instead of sinking.

Up"right` (?), a. (Golf) Designating a club in which the head is approximately at a right angle with the shaft.

Up"right` (?), n. (Basketwork) A tool made from a flat strip of steel with chisel edges at both ends, bent into horseshoe, the opening between the cutting edges being adjustable, used for reducing splits to skeins. Called in full upright shave.

Up*set", v. t. (Basketwork) To turn upwards the outer ends of (stakes) so as to make a foundation for the side of a basket or the like; also, to form (the side) in this manner.

Up*set"ting ther*mom"e*ter. A thermometer by merely inverting which the temperature may be registered. The column of mercury is broken and, as it remains until the instrument is reset, the reading may be made at leisure.