light year — a unit of astronomical distance equivalent to the distance that light travels in one year
Part of speech: NOUN
Definition: a unit of astronomical distance equivalent to the distance that light travels in one year
Pronunciation (IPA): /ˈlaɪt ˌjɪr/
Example Sentences
- My ex lives so far away, she might as well be light years from here!
- The Andromeda Galaxy is approximately 2.5 million light years from the Milky Way.
- Scientists discovered a planet that is 500 light years away, which means we're seeing it as it was 500 years ago.
light year
NOUN[/ˈlaɪt ˌjɪr/]
a unit of astronomical distance equivalent to the distance that light travels in one year
a unit of astronomical distance equivalent to the distance that light travels in one year
A bright year brings sight clear across every light year!
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🎤Pronunciation
🌳Etymology
Origin
Light year is a compound term created in the early 20th century with the advancement of astronomy. It combines 'light' and 'year' to express the vast distances across the universe in a comprehensible unit of measurement.
Breakdown
light (electromagnetic radiation, specifically visible light) + year (unit of time, 365.25 days) = the distance that light travels through a vacuum in one year, approximately 9.46 trillion kilometers.
🎵Rhyme
🔗Collocations
📝Examples
“My ex lives so far away, she might as well be light years from here!”
“The Andromeda Galaxy is approximately 2.5 million light years from the Milky Way.”
“Scientists discovered a planet that is 500 light years away, which means we're seeing it as it was 500 years ago.”
“I'm light years ahead of my classmates in understanding this physics concept!”
📚Related Words
Synonyms
Antonyms
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