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dimensionless (not comparable)
- Lacking dimensions.
- Synonym: adimensional
- 1674, John Milton, “Book XI”, in Paradise Lost. A Poem in Twelve Books, 2nd edition, London: […] S[amuel] Simmons […], OCLC 563123917, page 286:
- To Heav'n thir prayers / Flew up, nor miſsd the way, by envious windes / Blow'n vagabond or fruſtrate: in they paſsd / Dimentionleſs through Heav'nly dores; […]
- 1771, William Kenrick, A Lecture on Perpetual Motion, London, for the author, Introduction, p. 15,
- Extended objects may be separated by dimensionless points; but dimensionless points cannot be separated, but by some real distance, or something really extended.
- 1930, E. E. Smith, Skylark Three, Fantasy Press, 1948, Chapter 3,
- They saw the utter, absolute darkness of the complete absence of all light; and upon that indescribable blackness they beheld superimposed the almost unbearable brilliance of enormous suns concentrated into mathematical points, dimensionless.
- 1932, William Faulkner, chapter 10, in Light in August, [New York, N.Y.]: Harrison Smith & Robert Haas, OCLC 644581344; republished London: Chatto & Windus, 1933, OCLC 154633965, page 215:
- He did not look once again toward the dark house. […] He simply went quietly as if that were his natural manner of moving and passed around the now dimensionless bulk of the house, toward the rear, where the kitchen would be.
- (sciences) Of a physical constant: lacking units.