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Light Year

Definition of the noun light year

What does light year mean as a name of something?

noun

  1. the distance that light travels in a vacuum in 1 year; 5.88 trillion miles or 9.46 trillion kilometers
    • lexical domain: Quantities - nouns denoting quantities and units of measure
    • alternative spelling: light-year
    • more generic term: astronomy unit = a linear unit used for astronomical distances
    • parts:
      • light hour = the distance light travels in a vacuum in one hour
      • light minute = the distance light travels in a vacuum in one minute
      • light second = the distance light travels in a vacuum in one second

Alternative definition of the noun light year

noun

  1. [astronomy] A unit of length (abbreviation ly; equal to just under 10 trillion kilometres (1016 metres)) equal to the distance light travels in one year; used to measure extremely large distances.
  2. (in plural 'light years'; figurative, informal) A very long way.
  3. (in plural 'light years'; figurative, informal, nonstandard) A very long time.

Films

  1. "Light Year" is a 2008 documentary film written and directed by Mikael Kristersson.
  2. "Light Year" is a 2013 short film directed by Paul Clipson.

Music

"Light Year" is a musical album of Water & Bodies.

Printed dictionaries and other books with definitions for Light Year

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Google previewGaither's Dictionary of Scientific Quotations (2008)

A Collection of Quotations Pertaining to Archaeology, Architecture, Astronomy, Biology, Botany, Chemistry, Cosmology, Darwinism, Death, Engineering, Geology, Life, Mathematics, Medicine, Nature, Nursing, Paleontology, Philosophy, Physics, Probability, Science, Statistics, Technology, Theory, Universe, and Zoology by Carl C. Gaither, Alma E. Cavazos-Gaither

LIGHT YEAR Twain, Mark (Samuel Langhorne Clemens) 1835–1910 American author and humorist Light-year. This is without doubt the most stupendous and impressive phrase that exists in any language. In Bernard DeVoto (ed.) ...

Google previewThe Concise Oxford Dictionary of Mathematics (2009)

by Christopher Clapham, James Nicholson, James R. Nicholson

light year The distance ...

Google previewA Dictionary of Science (2010)

by Elizabeth A. Martin

light year ference of light in 1801 and showed that a wave theorywas essential to interpret this type ofphenomenon. This view was accepted for most ofthe 19th century and it enabled James Clerk Maxwell to show that light forms part of the ...

Online dictionaries and encyclopedias with entries for Light Year

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Photos about Light Year

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Light Yearlight year

Buz Light Year

Photo credit: Rafael Kage

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Video about Light Year

Light year Meaning

Video shows what light year means. A unit of length (abbreviation ly; equal to just under 10 trillion kilometres (1016 metres)) equal to the distance light travels in ...

See also the pronunciation examples of Light Year!

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