Matching Words
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Upside Down
- adverb - in an inverted manner; "the box was lying on the floor upside down"
Upside-Down
- adjective - being in such a position that top and bottom are reversed; "a quotation mark is sometimes called an inverted comma"; "an upside-down cake"
Upupa Epops
- noun - pinkish-brown hoopoe with black-and-white wings
Ural-Altaic
- noun - a (postulated) group of languages including many of the indigenous languages of Russia (but not Russian)
Uranium 235
- noun - a uranium isotope with mass number 235; capable of sustaining chain reactions
Uranium 238
- noun - the commonest isotope of uranium; it is not fissionable but when irradiated with neutrons it produces fissionable plutonium 239
Uranium Ore
- noun - any ore from which uranium can be extracted
Uranography
- - A description or plan of the heavens and the heavenly bodies; the construction of celestial maps, globes, etc.; uranology.
Uranologies
- noun - the branch of physics that studies celestial bodies and the universe as a whole