Antonyms for speed of lightspeed of light

WiktionaryRate these synonyms:0.0 / 0 votes

1. speed of lightnoun

   Synonyms:
   Einstein constant, Einstein barrier, lightspeed, light speed, c

2. speed of lightnoun

   The speed of electromagnetic radiation in a perfect vacuum: exactly 299,792,458 metres per second by definition.

   Synonyms:
   c, Einstein barrier, lightspeed, light speed, Einstein constant

Matched Categories

1. • Constant
   • Speed

Princeton's WordNetRate these antonyms:0.0 / 0 votes

1. speed of light, light speed, cnoun

   the speed at which light travels in a vacuum; the constancy and universality of the speed of light is recognized by defining it to be exactly 299,792,458 meters per second

   Synonyms:
   century, hundred, light speed, degree Celsius, nose candy, snow, coke, vitamin C, ascorbic acid, deoxycytidine monophosphate, one C, degree centigrade, c, ampere-second, coulomb, atomic number 6, blow, carbon, cytosine

How to use speed of light in a sentence?

1. Geoffrey Carter:

   The infrared looks for a flash from a gunshot and the acoustics listens for the bang, so we get the flash and the bang, and then we cue the operator. The accoustics get us very accurate azimuth, or bearing, to the threat. The combination of knowing the speed of light and the speed of sound, we’re able to get the distance in the time of arrival to the threat.

2. Perry Brass:

   Although computers allow people to talk at the speed of light, no one talks that fast.

3. Eric Tennen:

   It's all happening at the speed of light, it's just crazy. I don't know what's what anymore.

4. Seth Berkley:

   We have to think about it as a disease. This is a disease, this spreads at the speed of light, literally.

5. Yonatan Winetraub:

   Landing is the most difficult part of the mission for multiple reasons, it takes radio signals traveling at the speed of light 2 to 3 seconds in total to send and receive messages – the spacecraft is traveling at 2 kilometers a second at that point.

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