| COUNTERLIGHT | • COUNTERLIGHT n. a light opposite to any object, disturbing the effect of its light. | 
| COUNTERLIGHTS | • COUNTERLIGHT n. a light opposite to any object, disturbing the effect of its light. | 
| LUTEOTROPHIN | • luteotrophin n. Alternative form of luteotropin. • LUTEOTROPHIN n. another name for the hormone prolactin, also LUTEOTROPIN.
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| LUTEOTROPHINS | • luteotrophins n. Plural of luteotrophin. • LUTEOTROPHIN n. another name for the hormone prolactin, also LUTEOTROPIN.
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| MOUTHWATERINGLY | • mouthwateringly adv. In a mouthwatering manner. • mouth-wateringly adv. In a mouth-watering manner.
 • MOUTHWATERING adv. arousing the appetite.
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| MULTITHREADING | • multithreading n. (Computing) The use of multithreaded code. • MULTITHREADING n. a programming system that enables actions to be carried out simultaneously.
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| MULTITHREADINGS | • MULTITHREADING n. a programming system that enables actions to be carried out simultaneously. | 
| PHOTOJOURNALIST | • photojournalist n. A journalist who uses photojournalism. • PHOTOJOURNALIST n. a practitioner of photojournalism.
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| SULPHURETTING | • sulphuretting v. Present participle of sulphuret. • SULPHURET v. to treat with sulfur, also SULFURET.
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| TRIUMPHANTLY | • triumphantly adv. In a triumphant manner. • TRIUMPHANT adv. victorious, conquering.
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| TROUBLESHOOTING | • troubleshooting n. The identification and resolution of problems, especially problems of a technical nature. • troubleshooting v. Present participle of troubleshoot.
 • TROUBLESHOOT v. to solve problems.
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| ULTRAHEATING | • ultraheating v. Present participle of ultraheat. • ULTRAHEAT v. to heat to very high temperatures, as used for sterilisation.
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| ULTRATHIN | • ultrathin adj. Extremely thin; of utmost thinness. • ULTRATHIN adj. very very thin.
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| UNEARTHLIEST | • unearthliest adj. Superlative form of unearthly: most unearthly. • UNEARTHLY adj. not belonging to the earth, eerie.
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| UNFATHERLIEST | • UNFATHERLY adj. not fatherly. | 
| UNMOTHERLIEST | • UNMOTHERLY adj. not motherly. | 
| UNTHEORETICAL | • untheoretical adj. Not theoretical. • UNTHEORETICAL adj. not theoretical.
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| UNTHREATENINGLY | • unthreateningly adv. In an unthreatening way. | 
| UNTHRIFTILY | • unthriftily adv. In a way that is not thrifty. • unthriftily adv. (Obsolete) In an immoral or dissolute manner.
 • UNTHRIFTY adv. not thrifty.
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| UNTRUSTWORTHILY | • untrustworthily adv. In an untrustworthy manner. • UNTRUSTWORTHY adv. not trustworthy.
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