| steady-state theory | |
| —n | |
| Compare big-bang theory a cosmological theory postulating that the universe exists throughout time in a steady state such that the average density of matter does not vary with distance or time. Matter is continuously created in the space left by the receding stars and galaxies of the expanding universe | |
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| a chattering or flighty, light-headed person. |
| an extraordinary or unusual thing, person, or event; an exceptional example or instance. |