最終更新日：2023/08/19

Dictionary quizzes to help you remember vocabulary

(astronomy) A unit of length (abbreviation ly; equal to just under 10 trillion kilometres (10¹⁶ metres)) equal to the distance light travels in one Julian year; used to measure extremely large distances.

正解を見る

light year

問題を編集する

編集履歴（0）

元となった辞書の項目

light year

/ˈlaɪt.jɪə/

noun

A light year is a unit of length used in astronomy.

Google翻訳 / DeepL翻訳

詳細

意味（1）

We live our lives in three dimensions for our threescore and ten allotted years. Yet every branch of contemporary science, from statistics to cosmology, alludes to processes that operate on scales outside of human experience: the millisecond and the nanometer, the eon and the light-year.

Google翻訳 / DeepL翻訳