lightlike

L1I1G2H4T1L1I1K5E1

adjective

(of a four-vector) Having a space component whose magnitude is equal to its time component multiplied by the speed of light.

Scrabble 17
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Meanings

adjectivelightlike (comparative more lightlike, superlative most lightlike)

comparative more lightlike · superlative most lightlike

  1. mathematics(of a four-vector) Having a space component whose magnitude is equal to its time component multiplied by the speed of light.

Origin

From light + -like.

Full word history & related roots →

Translations

German lichtartig
  • lichtartighaving a space component equal to its time component multiplied by the speed of light
Cite this entry
APA

lightlike. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/lightlike

MLA

“lightlike.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/lightlike. Accessed November 2, 2026.

Chicago

WatkinsX Dictionary, s.v. “lightlike,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/lightlike.

Source: lightlike on Wiktionary, CC BY-SA 4.0.