| 单词 | cosmic background radiation |
| 释义 | cosmic background radiationnoun Astronomy.electromagnetic radiation coming from every direction in the universe, considered the remnant of the big bang and corresponding to the black-body radiation of 3 K, the temperature to which the universe has cooled. Also called cosmic microwave background. Words nearby cosmic background radiationcosmetic surgery, cosmetize, cosmetologist, cosmetology, cosmic, cosmic background radiation, cosmic dust, cosmic microwave background, cosmic noise, cosmic ray, cosmic rays Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 Scientific definitions for cosmic background radiationcosmic background radiation Weak radio-frequency radiation traveling through outer space with equal intensity in every direction. It is thought to be residual radiation from a period shortly following the big bang, when the universe was very hot. Also called microwave background The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved. |
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