| / English Dictionary |
COSMIC RADIATION
| Pronunciation (US): |  | (GB): | |
I. (noun)
Sense 1
Meaning:
Radiation coming from outside the solar system
Classified under:
Nouns denoting natural phenomena
Hypernyms ("cosmic radiation" is a kind of...):
radiation (energy that is radiated or transmitted in the form of rays or waves or particles)
Meronyms (parts of "cosmic radiation"):
cosmic ray (highly penetrating ionizing radiation of extraterrestrial origin; consisting chiefly of protons and alpha particles; collision with atmospheric particles results in rays and particles of many kinds)
Hyponyms (each of the following is a kind of "cosmic radiation"):
CBR; CMB; CMBR; cosmic background radiation; cosmic microwave background; cosmic microwave background radiation ((cosmology) the cooled remnant of the hot big bang that fills the entire universe and can be observed today with an average temperature of about 2.725 kelvin)
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