| spallation | (noun) (physics) a nuclear reaction in which a bombarded nucleus breaks up into many particles | - |
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| tepal | (noun) an undifferentiated part of a perianth that cannot be distinguished as a sepal or a petal (as in lilies and tulips) | - |
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| tripalmitin | (noun) a triglyceride of palmitic acid | Synonyms: glycerol tripalmitate |
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| unpalatability | (noun) the property of being unacceptable to the mouth | Synonyms: unpalatableness |
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| (noun) the property of being unacceptable to the mind | Synonyms: unpalatableness |
| unpalatable | (adjective) not pleasant or acceptable to the taste or mind | - |
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| unpalatableness | (noun) the property of being unacceptable to the mouth | Synonyms: unpalatability |
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| (noun) the property of being unacceptable to the mind | Synonyms: unpalatability |
| unpalatably | (adverb) in an unpalatable way | - |
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| uvulopalatopharyngoplasty | (noun) surgical resection of unnecessary palatal and oropharyngeal tissue to open the airway; intended to cure extreme cases of snoring (with or without sleep apnea) | Synonyms: palatopharyngoplasty, PPP, UPPP |
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