Definitions
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun astronomy, physics A unit of
length equal to thedistance light travels in onesecond
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- noun the distance light travels in a vacuum in one second; approximately 300,000 kilometers
Etymologies
Sorry, no etymologies found.
Support
Help support Wordnik (and make this page ad-free) by adopting the word light second.
Examples
Sorry, no example sentences found.
Comments
Log in or sign up to get involved in the conversation. It's quick and easy.