Word:    Find rhymes Find rhymes (advanced) Find near rhymes Find synonyms Find descriptive words Find phrases Find antonyms Find definitions Find related words Find similar sounding words Find similarly spelled words Find homophones Find phrase rhymes Match consonants only Match these letters Find anagrams (unscramble) Definitions of Cosmic microwave background: noun:   (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 Related words...   Help  Feedback  Privacy  Terms of Use Copyright © 2023