Order of a differential equation
Order Or"der, n. [OE. ordre, F. ordre, fr. L. ordo, ordinis. Cf. {Ordain}, {Ordinal}.] [1913 Webster] 1. Regular arrangement; any methodical or established succession or harmonious relation; method; system; as: (a) Of material things, like the books in a library. (b) Of intellectual notions or ideas, like the topics of a discource. (c) Of periods of time or occurrences, and the like. [1913 Webster]

The side chambers were . . . thirty in order. --Ezek. xli. 6. [1913 Webster]

Bright-harnessed angels sit in order serviceable. --Milton. [1913 Webster]

Good order is the foundation of all good things. --Burke. [1913 Webster]

2. Right arrangement; a normal, correct, or fit condition; as, the house is in order; the machinery is out of order. --Locke. [1913 Webster]

3. The customary mode of procedure; established system, as in the conduct of debates or the transaction of business; usage; custom; fashion. --Dantiel. [1913 Webster]

And, pregnant with his grander thought, Brought the old order into doubt. --Emerson. [1913 Webster]

4. Conformity with law or decorum; freedom from disturbance; general tranquillity; public quiet; as, to preserve order in a community or an assembly. [1913 Webster]

5. That which prescribes a method of procedure; a rule or regulation made by competent authority; as, the rules and orders of the senate. [1913 Webster]

The church hath authority to establish that for an order at one time which at another time it may abolish. --Hooker. [1913 Webster]

6. A command; a mandate; a precept; a direction. [1913 Webster]

Upon this new fright, an order was made by both houses for disarming all the papists in England. --Clarendon. [1913 Webster]

7. Hence: A commission to purchase, sell, or supply goods; a direction, in writing, to pay money, to furnish supplies, to admit to a building, a place of entertainment, or the like; as, orders for blankets are large. [1913 Webster]

In those days were pit orders -- beshrew the uncomfortable manager who abolished them. --Lamb. [1913 Webster]

8. A number of things or persons arranged in a fixed or suitable place, or relative position; a rank; a row; a grade; especially, a rank or class in society; a group or division of men in the same social or other position; also, a distinct character, kind, or sort; as, the higher or lower orders of society; talent of a high order. [1913 Webster]

They are in equal order to their several ends. --Jer. Taylor. [1913 Webster]

Various orders various ensigns bear. --Granville. [1913 Webster]

Which, to his order of mind, must have seemed little short of crime. --Hawthorne. [1913 Webster]

9. A body of persons having some common honorary distinction or rule of obligation; esp., a body of religious persons or aggregate of convents living under a common rule; as, the Order of the Bath; the Franciscan order. [1913 Webster]

Find a barefoot brother out, One of our order, to associate me. --Shak. [1913 Webster]

The venerable order of the Knights Templars. --Sir W. Scott. [1913 Webster]

10. An ecclesiastical grade or rank, as of deacon, priest, or bishop; the office of the Christian ministry; -- often used in the plural; as, to take orders, or to take holy orders, that is, to enter some grade of the ministry. [1913 Webster]

11. (Arch.) The disposition of a column and its component parts, and of the entablature resting upon it, in classical architecture; hence (as the column and entablature are the characteristic features of classical architecture) a style or manner of architectural designing. [1913 Webster]

Note: The Greeks used three different orders, easy to distinguish, Doric, Ionic, and Corinthian. The Romans added the Tuscan, and changed the Doric so that it is hardly recognizable, and also used a modified Corinthian called Composite. The Renaissance writers on architecture recognized five orders as orthodox or classical, -- Doric (the Roman sort), Ionic, Tuscan, Corinthian, and Composite. See Illust. of {Capital}. [1913 Webster]

12. (Nat. Hist.) An assemblage of genera having certain important characters in common; as, the Carnivora and Insectivora are orders of Mammalia. [1913 Webster]

Note: The Linn[ae]an artificial orders of plants rested mainly on identity in the numer of pistils, or agreement in some one character. Natural orders are groups of genera agreeing in the fundamental plan of their flowers and fruit. A natural order is usually (in botany) equivalent to a family, and may include several tribes. [1913 Webster]

13. (Rhet.) The placing of words and members in a sentence in such a manner as to contribute to force and beauty or clearness of expression. [1913 Webster]

14. (Math.) Rank; degree; thus, the order of a curve or surface is the same as the degree of its equation. [1913 Webster]

{Artificial order} or {Artificial system}. See {Artificial classification}, under {Artificial}, and Note to def. 12 above.

{Close order} (Mil.), the arrangement of the ranks with a distance of about half a pace between them; with a distance of about three yards the ranks are in {open order}.

{The four Orders}, {The Orders four}, the four orders of mendicant friars. See {Friar}. --Chaucer.

{General orders} (Mil.), orders issued which concern the whole command, or the troops generally, in distinction from {special orders}.

{Holy orders}. (a) (Eccl.) The different grades of the Christian ministry; ordination to the ministry. See def. 10 above. (b) (R. C. Ch.) A sacrament for the purpose of conferring a special grace on those ordained.

{In order to}, for the purpose of; to the end; as means to.

The best knowledge is that which is of greatest use in order to our eternal happiness. --Tillotson.

{Minor orders} (R. C. Ch.), orders beneath the diaconate in sacramental dignity, as acolyte, exorcist, reader, doorkeeper.

{Money order}. See under {Money}.

{Natural order}. (Bot.) See def. 12, Note.

{Order book}. (a) A merchant's book in which orders are entered. (b) (Mil.) A book kept at headquarters, in which all orders are recorded for the information of officers and men. (c) A book in the House of Commons in which proposed orders must be entered. [Eng.]

{Order in Council}, a royal order issued with and by the advice of the Privy Council. [Great Britain]

{Order of battle} (Mil.), the particular disposition given to the troops of an army on the field of battle.

{Order of the day}, in legislative bodies, the special business appointed for a specified day.

{Order of a differential equation} (Math.), the greatest index of differentiation in the equation.

{Sailing orders} (Naut.), the final instructions given to the commander of a ship of war before a cruise.

{Sealed orders}, orders sealed, and not to be opened until a certain time, or arrival at a certain place, as after a ship is at sea.

{Standing order}. (a) A continuing regulation for the conduct of parliamentary business. (b) (Mil.) An order not subject to change by an officer temporarily in command.

{To give order}, to give command or directions. --Shak.

{To take order for}, to take charge of; to make arrangements concerning. [1913 Webster]

Whiles I take order for mine own affairs. --Shak. [1913 Webster]

Syn: Arrangement; management. See {Direction}. [1913 Webster]


The Collaborative International Dictionary of English. 2000.

Look at other dictionaries:

  • Order of battle — Order Or der, n. [OE. ordre, F. ordre, fr. L. ordo, ordinis. Cf. {Ordain}, {Ordinal}.] [1913 Webster] 1. Regular arrangement; any methodical or established succession or harmonious relation; method; system; as: (a) Of material things, like the… …   The Collaborative International Dictionary of English

  • Order of the day — Order Or der, n. [OE. ordre, F. ordre, fr. L. ordo, ordinis. Cf. {Ordain}, {Ordinal}.] [1913 Webster] 1. Regular arrangement; any methodical or established succession or harmonious relation; method; system; as: (a) Of material things, like the… …   The Collaborative International Dictionary of English

  • Differential equation — Not to be confused with Difference equation. Visualization of heat transfer in a pump casing, created by solving the heat equation. Heat is being generated internally in the casing and being cooled at the boundary, providing a steady state… …   Wikipedia

  • differential equation — Math. an equation involving differentials or derivatives. [1755 65] * * * Mathematical statement that contains one or more derivatives. It states a relationship involving the rates of change of continuously changing quantities modeled by… …   Universalium

  • Equation of a curve — Equation E*qua tion, n. [L. aequatio an equalizing: cf. F. [ e]quation equation. See {Equate}.] 1. A making equal; equal division; equality; equilibrium. [1913 Webster] Again the golden day resumed its right, And ruled in just equation with the… …   The Collaborative International Dictionary of English

  • Differential of a function — For other uses of differential in mathematics, see differential (mathematics). In calculus, the differential represents the principal part of the change in a function y = ƒ(x) with respect to changes in the independent variable. The… …   Wikipedia

  • First order partial differential equation — In mathematics, a first order partial differential equation is a partial differential equation that involves only first derivatives of the unknown function of n variables. The equation takes the form: F(x 1,ldots,x n,u,u {x 1},ldots u {x n}) =0 …   Wikipedia

  • ordinary differential equation — Math. an equation containing derivatives but not partial derivatives. Cf. partial differential equation. * * * Equation containing derivatives of a function of a single variable. Its order is the order of the highest derivative it contains (e.g …   Universalium

  • Partial differential equation — A visualisation of a solution to the heat equation on a two dimensional plane In mathematics, partial differential equations (PDE) are a type of differential equation, i.e., a relation involving an unknown function (or functions) of several… …   Wikipedia

  • Matrix differential equation — A differential equation is a mathematical equation for an unknown function of one or several variables that relates the values of the function itself and of its derivatives of various orders. A matrix differential equation is one containing more… …   Wikipedia

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