LIGHT SPEED Definition & Meaning

light speed

or ��·��

[ lahyt speed ]

Phonetic (Standard)IPA

noun

Physics, Optics. speed of light ( def 1 ).
an extremely fast rate:
The rumor circulated at light speed around the town.

adjective

very fast:
Her best time in the race is a lightspeed 8.7 seconds.

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�y��vlog History and Origins

Origin of light speed¹

First recorded in 1855–60

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Example Sentences

Examples have not been reviewed.

In an aptly titled Associated Press news story “Trump moves with light speed and brute force in shaking the core of what America has been”, Calvin Woodward recounts the last six weeks:

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A nearby, highly magnetized white dwarf could accelerate those particles to near–light speeds.

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But at light speed, with a mass audience and a permanent record.

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Quakes rupture on a fault at the speed of sound through rock, which is slower than the light speed of today’s telecommunications systems.

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“Things have happened at light speed compared to what my forecast was,” founder and CEO Jenny Nguyen told The Associated Press.

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