| slovo | definícia |
light-year
(encz) | light-year,světelný rok Zdeněk Brož |
Light-year
(gcide) | Light-year \Light-year\, Light year \Light year\ (Astron.)
1. The distance over which light can travel in a year's time
in a vacuum, 5.88 trillion miles (9.46 trillion
kilometers); -- used as a unit in expressing stellar
distances. It is more than 63,000 times as great as the
distance from the earth to the sun. The star nearest to
the earth's sun is about 4 light years distant.
[Webster 1913 Suppl. +PJC]
2. a very large difference; -- used figuratively to express
great differences (of distance, quality, time) in
comparisons. "Although having the same rank and salary,
they were light-years apart in their ability to perform
their jobs."
[PJC] |
light-year
(wn) | light-year
n 1: the distance that light travels in a vacuum in 1 year; 5.88
trillion miles or 9.46 trillion kilometers [syn: {light
year}, light-year] |
| | podobné slovo | definícia |
light-year
(encz) | light-year,světelný rok Zdeněk Brož |
light-year
(wn) | light-year
n 1: the distance that light travels in a vacuum in 1 year; 5.88
trillion miles or 9.46 trillion kilometers [syn: {light
year}, light-year] |
|