| ARCHPRIESTHOOD | • archpriesthood n. (Ecclesiastical) The office of an archpriest. • ARCHPRIESTHOOD n. the office of archpriest.
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| DIPHTHERITISES | • DIPHTHERITIS n. diphtheria. | 
| HEADMASTERSHIP | • headmastership n. The role or position of headmaster. • HEADMASTERSHIP n. the office of headmaster.
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| HERMAPHRODITES | • hermaphrodites n. Plural of hermaphrodite. • HERMAPHRODITE n. a human being, animal or plant with the organs of both sexes.
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| HUNDREDWEIGHTS | • hundredweights n. Plural of hundredweight. • HUNDREDWEIGHT n. 1/20 of a ton, or 112lb. avoirdupois.
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| HYDROSULPHATES | • hydrosulphates n. Plural of hydrosulphate. • HYDROSULPHATE n. any quaternary acid salt formed by addition of an organic base to sulphuric acid, such as aniline hydrosulphate.
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| HYDROSULPHITES | • hydrosulphites n. Plural of hydrosulphite. • HYDROSULPHITE n. a salt of hydrosulphurous acid; esp. the sodium salt, used as a reagent.
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| HYDROTHERAPIES | • hydrotherapies n. Plural of hydrotherapy. • HYDROTHERAPY n. therapy involving the use of water.
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| HYDROTHERAPIST | • hydrotherapist n. A therapist who performs hydrotherapy. • HYDROTHERAPIST n. a practitioner of hydrotherapy.
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| ORTHOHYDROGENS | • orthohydrogens n. Plural of orthohydrogen. • ORTHOHYDROGEN n. the form of molecular hydrogen, constituting about 75 per cent of the total at normal temperatures, in which the nuclei of the atoms spin in the same direction.
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| PHOSPHORYLATED | • phosphorylated v. Simple past tense and past participle of phosphorylate. • phosphorylated adj. (Chemistry) reacted or combined with phosphoric acid.
 • PHOSPHORYLATE v. to cause (an organic compound) to take up or combine with phosphoric acid or a phosphorus-containing group.
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| RHODOCHROSITES | • rhodochrosites n. Plural of rhodochrosite. • RHODOCHROSITE n. manganese ore.
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| SHORTSIGHTEDLY | • shortsightedly adv. With short sight; myopically. • shortsightedly adv. In a manner that fails to consider the big picture or future effects of an action or decision.
 • short-sightedly adv. In a short-sighted manner.
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| STADHOLDERSHIP | • stadholdership n. Alternative spelling of stadtholdership. • STADHOLDERSHIP n. the office of stadholder, a Dutch viceroy or provincial governor, also STADHOLDERATE, STADTHOLDERATE, STADTHOLDERSHIP.
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| THUNDERFLASHES | • thunderflashes n. Plural of thunderflash. • THUNDERFLASH n. a container, such as a blank shell, filled with explosive powder, which makes a flash and a loud explosion when detonated.
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| THUNDERSHOWERS | • thundershowers n. Plural of thundershower. • THUNDERSHOWER n. a shower accompanied by lightning and thunder.
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| UNTHRIFTIHEADS | • UNTHRIFTIHEAD n. (archaic) thriftlessness. | 
| UNTHRIFTYHEADS | • UNTHRIFTYHEAD n. (Spenser) unthriftiness, also UNTHRIFTYHED. |