Definitions of urethane
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an ester of carbamic acidtype of:esterformed by reaction between an acid and an alcohol with elimination of water
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Vocabulary lists containing urethane
Elements of the Universe: Aether ("Sky")
The ancients believed that the universe was composed of five basic elements: earth, air, fire, water, and sky. The Greek and Latin words for these elements still show up in our language today. Aither, a Greek word meaning "pure or upper sky," was a fifth element that was thought to be a purer and higher form of fire or air, and it was the most sacred of all the elements. Here are links to our complete set of Elements of the Universe lists: Cosm, Cosmo ("Universe") / Terr, Terra ("Earth") / Geo ("Earth") / Hydr, Hydro ("Water") / Aqua ("Water") / Ign, Igni ("Fire") / Pyr, Pyro ("Fire") / Aer, Aero ("Air") / Aether ("Sky") / Aster, Astro ("Star") / Sol ("Sun")