D defs.my
Entry 2 senses Webster, 1913

cosmology

/(kŏz*mŏl"ō̇*jy̆)/ · cos·mol·o·gy · IPA /kɑzˈmɑləd͡ʒi/
01 n. The branch of science or philosophy dealing with the origin and nature of the universe as a whole.
  1. 1.
    The branch of science or philosophy dealing with the origin and nature of the universe as a whole.(Philosophy)
  2. 2.
    a treatise dealing with the original and structure of the universe.