light year
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light year
also light-yearn.
1. The distance that light travels in a vacuum in one year, approximately 9.46 trillion kilometers (5.88 trillion miles).
2. often light years Informal A long way: a small town light years away from the action of the capital.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
light year
n
(Units) a unit of distance used in astronomy, equal to the distance travelled by light in one year, i.e. 9.4607 × 1012 kilometres or 0.3066 parsecs
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
light year
- Not a length of time but a distance, the distance a pulse of light travels in one year (about 5.88 trillion miles).See also related terms for pulse.
Farlex Trivia Dictionary. © 2012 Farlex, Inc. All rights reserved.
light year
1. (ly) The distance traveled by light in a year, equal to 5.878 trillion mi (9.4605 trillion km) or 63,290 au. Defined in 1888.
2. A unit of length (distance) representing the distance traveled by electromagnetic waves (light) through space in one year. 1 light year = 9 trillion miles.
Dictionary of Unfamiliar Words by Diagram Group Copyright © 2008 by Diagram Visual Information Limited
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| Noun | 1. | light year - the distance that light travels in a vacuum in 1 year; 5.88 trillion miles or 9.46 trillion kilometers astronomy unit - a linear unit used for astronomical distances light hour - the distance light travels in a vacuum in one hour; approximately one billion kilometers light minute - the distance light travels in a vacuum in one minute; approximately 18 million kilometers light second - the distance light travels in a vacuum in one second; approximately 300,000 kilometers |
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Translations
any-llum
světelný rok
lysår
lumjaro
valgusaasta
valovuosi
שנת אור
svjetlosna godina
fényév
tahun cahaya
ljósár
光年
spatium lucis annuae
šviesmetis
gaismas gads
rok świetlny
ano-luz
an-lumină
svetelný rok
svetlobno leto
светлосна година
ljusår
mwaka wa nuru
ปีแสง
işık yılı
світловий рік
năm ánh sáng
Collins Italian Dictionary 1st Edition © HarperCollins Publishers 1995