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rifying, or the state of being devitrified. Specifically, the conversion of molten glassy matter into a stony mass by slow cooling, the result being the formation of crystallites, microbites, etc., in the glassy base, which are then called devitrification products.

Dewrotting; the process of decomposing the gummy matter of flax and hemp and setting the fibrous part, by exposure on a sward to dew, rain, and sunshine.

ine. Most frequently the urine is not only increased in quantity, but contains saccharine matter, in which case the disease is generally fatal. Diabetes mellitus Etym: [NL., sweet diabetes], that form of diabetes in which the urine contains saccharine matter. -- Diabetes insipidus Etym: [NL., lit., diabetes], the form…

Any simple drawing made for mathematical or scientific purposes, or to assist a verbal explanation which refers to it; a mechanical drawing, as distinguished from an artistical one. Indicator diagram. (Steam Engine) See Indicator card, under indicator

Pertaining to, or of the nature of, a diagram; showing by diagram. -- Di`a*gram*mat"ic*ly, adv.

scriptive drawing; especially, the art or science of drawing by mechanical appliances and mathematical rule.

The material subjected to dialysis.

The condition of certain species of plants, in which the stamens and pistil do not mature simultaneously, so that these plants can never fertilize themselves.

er might be of use to ascertain or illustrate any word or phrase, accumulated in time the materials of a dictionary. Johnson.

A small interval, less than any in actual practice, but used in the mathematical calculation of intervals.

Disagreement in opinion; dissension; controversy; quarrel; hence, cause of dissension; matter in controversy. What was the difference It was a contention in public. Shak. Away therefore went I with the constable, leaving the old warden and the young constable to compose their difference as they could. T. Ellwood.…

verage; producing effects by such differences; said of mechanism. Differential calculus. (Math.) See under Calculus. -- Differential coefficient, the limit of the ratio of the increment of a function of a variable to the increment of the variable itself, when these increments are made indefinitely small. -- Different…

Material which, in the process of catalysis, has diffused or passed through the separating membrane.

Joining them together and digesting them into order. Blair. We have cause to be glad that matters are so well digested. Shak.

A wall-like mass of mineral matter, usually an intrusion of igneous rocks, filling up rents or fissures in the original strata.

aw), a plea designed to create delay in the trial of a cause, generally founded upon some matter not connected with the merits of the case.

maginary dimension. Space of five or six, or more dimensions is also sometimes assumed in mathematics.

A service for the dead, in the Roman Catholic Church, being the first antiphon of Matins for the dead, of which Dirige is the first word; a dirge. Evensongs and placebo and dirige. Wyclif. Resort, I pray you, unto my sepulture To sing my dirige with great devotion. Lamentation of Mary Magdalene.

Training to act in accordance with established rules; accustoming to systematic and regular action; drill. Their wildness lose, and, quitting nature's part, Obey the rules and discipline of art. Dryden.

dissolution of continuity; gaping. "Discontinuous wound." Milton. Discontinuous function (Math.), a function which for certain values or between certain values of the variable does not vary continuously as the variable increases. The discontinuity may, for example, consist of an abrupt change in the value of the functi…