different between spacetime vs matter

English

Etymology

From space +? time, as a calque of German Raumzeit, introduced in this sense by Hermann Minkowski.

Noun

spacetime (countable and uncountable, plural spacetimes)

1. (uncountable, physics) The four-dimensional continuum of the three spatial dimensions plus time.

   An event is a point in spacetime, specified by the coordinates x, y, z, and t.

2. (physics) An n-dimensional continuum consisting of dimensions of both space and time. Normally spacetime is considered as having 4 dimensions (x, y, z, t), but higher-dimensional spacetimes are often encountered in theoretical physics, e.g. the 5-dimensional spacetime of Kaluza-Klein theory or the 11 dimensions of spacetime in M-theory.
3. (relativity) A specific region of the universe with mathematically different properties than the surrounding spacetime. Synonymous with "metric" within the context of general relativity.

   "a Schwarzschild spacetime," "a Reissner-Nordström spacetime," etc. as opposed to sense (2) describing the universe's spacetime as a whole: "a Minkowski spacetime," "a 5-dimensional spacetime," etc.

Derived terms

Coordinate terms

• temporospatial
• spatiotemporal

Translations

References

• spacetime on Wikipedia.Wikipedia

Anagrams

• empaestic, timescape

English

Etymology

From Middle English matere, mater, from Anglo-Norman matere, materie, from Old French materie, matiere, from Latin materia (“matter, stuff, material”), derivative of Latin mater (“mother”). Doublet of Madeira.

Displaced native Middle English andweorc, andwork (“material, matter”) (from Old English andweorc (“matter, substance, material”)), Old English intinga (“matter, affair, business”).

Pronunciation

• (Received Pronunciation) IPA^(key): /?mæt?/
• (General American) IPA^(key): /?mæt?/, [?mæ??]
  • Homophone: madder
• Rhymes: -æt?(?)
• Hyphenation: mat?ter

Noun

matter (countable and uncountable, plural matters)

1. Substance, material.
   1. (physics) The basic structural component of the universe. Matter usually has mass and volume.
   2. (physics) Matter made up of normal particles, not antiparticles.

      Antonym: antimatter

   3. A kind of substance.

   4. Printed material, especially in books or magazines.

   5. (philosophy) Aristotelian: undeveloped potentiality subject to change and development; formlessness. Matter receives form, and becomes substance.
2. A condition, subject or affair, especially one of concern.
   • 1597, Francis Bacon, Of the Colours of Good and Evil

     if the matter should be tried by duel

   • 12 July 2012, Sam Adams, AV Club Ice Age: Continental Drift

     The matter of whether the world needs a fourth Ice Age movie pales beside the question of why there were three before it, but Continental Drift feels less like an extension of a theatrical franchise than an episode of a middling TV cartoon, lolling around on territory that’s already been settled.

3. An approximate amount or extent.
4. (obsolete) The essence; the pith; the embodiment.
   • 1611, Ben Jonson, Oberon, the Faery Prince

     He is the matter of virtue.

5. (obsolete) Inducing cause or reason, especially of anything disagreeable or distressing.
6. (dated) Pus.

Synonyms

• material
• stuff
• substance

Derived terms

Related terms

• dark matter

Translations

Verb

matter (third-person singular simple present matters, present participle mattering, simple past and past participle mattered)

1. (intransitive) To be important. [from 16th c.]
2. (transitive, in negative constructions, now England regional, Caribbean) To care about, to mind; to find important. [from 17th c.]
   • , Folio Society 1973, p.47:

     Besides, if it had been out of doors I had not mattered it so much; but with my own servant, in my own house, under my own roof […]

   • 1748, Samuel Richardson, Clarissa, Letter 56:

     He matter'd not that, he said; coy maids made the fondest wives […].

3. (intransitive, medicine, archaic) To form pus or matter, as an abscess; to maturate.

   • Each slight sore mattereth.

Derived terms

• it doesn't matter
• no matter (“in spite of”)

Synonyms

• (be important): signify

Translations

French

Verb

matter

1. Alternative spelling of mater

Conjugation

Anagrams

• mettra

German

Pronunciation

• IPA^(key): /?mat?/

Adjective

matter

1. comparative degree of matt
2. inflection of matt:
   1. strong/mixed nominative masculine singular
   2. strong genitive/dative feminine singular
   3. strong genitive plural

Middle French

Alternative forms

• mater

Verb

matter

1. to checkmate

Conjugation

• Middle French conjugation varies from one text to another. Hence, the following conjugation should be considered as typical, not as exhaustive.

Norwegian Bokmål

Noun

matter m pl or f pl

1. indefinite plural of matte (Etymology 1)

Norwegian Nynorsk

Noun

matter f pl

1. indefinite plural of matte (Etymology 1)