Space of four dimensions
Dimension Di*men"sion, n. [L. dimensio, fr. dimensus, p. p. of dimetiri to measure out; di- = dis- + metiri to measure: cf. F. dimension. See {Measure}.] 1. Measure in a single line, as length, breadth, height, thickness, or circumference; extension; measurement; -- usually, in the plural, measure in length and breadth, or in length, breadth, and thickness; extent; size; as, the dimensions of a room, or of a ship; the dimensions of a farm, of a kingdom. [1913 Webster]

Gentlemen of more than ordinary dimensions. --W. Irving. [1913 Webster]

{Space of dimension}, extension that has length but no breadth or thickness; a straight or curved line.

{Space of two dimensions}, extension which has length and breadth, but no thickness; a plane or curved surface.

{Space of three dimensions}, extension which has length, breadth, and thickness; a solid.

{Space of four dimensions}, as imaginary kind of extension, which is assumed to have length, breadth, thickness, and also a fourth imaginary dimension. Space of five or six, or more dimensions is also sometimes assumed in mathematics. [1913 Webster]

2. Extent; reach; scope; importance; as, a project of large dimensions. [1913 Webster]

3. (Math.) The degree of manifoldness of a quantity; as, time is quantity having one dimension; volume has three dimensions, relative to extension. [1913 Webster]

4. (Alg.) A literal factor, as numbered in characterizing a term. The term dimensions forms with the cardinal numbers a phrase equivalent to degree with the ordinal; thus, a^{2}b^{2}c is a term of five dimensions, or of the fifth degree. [1913 Webster]

5. pl. (Phys.) The manifoldness with which the fundamental units of time, length, and mass are involved in determining the units of other physical quantities.

Note: Thus, since the unit of velocity varies directly as the unit of length and inversely as the unit of time, the dimensions of velocity are said to be length [divby] time; the dimensions of work are mass [times] (length)^{2} [divby] (time)^{2}; the dimensions of density are mass [divby] (length)^{3}.

{Dimensional lumber}, {Dimension lumber}, {Dimension scantling}, or {Dimension stock} (Carp.), lumber for building, etc., cut to the sizes usually in demand, or to special sizes as ordered.

{Dimension stone}, stone delivered from the quarry rough, but brought to such sizes as are requisite for cutting to dimensions given. [1913 Webster]


The Collaborative International Dictionary of English. 2000.

Look at other dictionaries:

  • Space of three dimensions — Dimension Di*men sion, n. [L. dimensio, fr. dimensus, p. p. of dimetiri to measure out; di = dis + metiri to measure: cf. F. dimension. See {Measure}.] 1. Measure in a single line, as length, breadth, height, thickness, or circumference;… …   The Collaborative International Dictionary of English

  • Space of two dimensions — Dimension Di*men sion, n. [L. dimensio, fr. dimensus, p. p. of dimetiri to measure out; di = dis + metiri to measure: cf. F. dimension. See {Measure}.] 1. Measure in a single line, as length, breadth, height, thickness, or circumference;… …   The Collaborative International Dictionary of English

  • Space of dimension — Dimension Di*men sion, n. [L. dimensio, fr. dimensus, p. p. of dimetiri to measure out; di = dis + metiri to measure: cf. F. dimension. See {Measure}.] 1. Measure in a single line, as length, breadth, height, thickness, or circumference;… …   The Collaborative International Dictionary of English

  • space-time continuum — noun the four dimensional coordinate system (3 dimensions of space and 1 of time) in which physical events are located • Syn: ↑space time • Hypernyms: ↑coordinate system, ↑frame of reference, ↑reference system, ↑reference frame * * * noun …   Useful english dictionary

  • Space — • The idea of space is one of the most important in the philosophy of the material world; for centuries it has preoccupied and puzzled philosophers and psychologists Catholic Encyclopedia. Kevin Knight. 2006. Space     Space …   Catholic encyclopedia

  • space — 1 /speIs/ noun 1 AMOUNT OF SPACE (U) the amount of an area, room, container etc that is empty or available to be used: There s space for a table and two chairs. | How much space is there on each disk? | make space: I m trying to make space for… …   Longman dictionary of contemporary English

  • four-dimensional — [fôr΄də men′shə nəl] adj. of or in four dimensions, esp. in relativity theory where four coordinates are used to record the space location and time of occurrence of each event …   English World dictionary

  • four-dimensional — four′ dimen′sional adj. 1) of our having four dimensions 2) math. of a space having points, or a set having elements, that require four coordinates for their unique determination • Etymology: 1875–80 …   From formal English to slang

  • Space group — In mathematics and geometry, a space group is a symmetry group, usually for three dimensions, that divides space into discrete repeatable domains. In three dimensions, there are 219 unique types, or counted as 230 if chiral copies are considered… …   Wikipedia

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