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WordReference Random House Unabridged Dictionary of American English © 2024primor′dial soup′, [Biol.]- Biochemistry, Biologythe seas and atmosphere as they existed on earth before the existence of life, consisting primarily of an oxygen-free gaseous mixture containing chiefly water, hydrogen, methane, ammonia, and carbon dioxide.
- Biochemistry, Biology, Laboratorya laboratory preparation containing the substances believed to have composed primordial soup, and used in experiments seeking to understand the origin of life.
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