Reverse Word Search Lookup

Comprehensive
Dictionary Suite
Help
Help
Help
 
big bang theory the theory that the universe originated at a fixed point billions of years ago in a cosmic explosion of a mass of hydrogen atoms, and that it has been expanding ever since. (Cf. steady state theory.)
solar flare a short intense outburst of solar gases, often near sunspots, accompanied by cosmic rays, x-rays, and magnetic storms.
universal of or relating to the universe; cosmic. [1/6 definitions]