| HALFPENNYWORTH | • halfpennyworth n. (Britain) As much as could be bought for a halfpenny (pre- or post-decimalisation). • halfpennyworth n. (Britain, informal) A negligible amount.
 • halfpennyworth n. (Britain, informal) One’s opinion or thoughts; one’s two cents.
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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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| HYDROTHERMALLY | • hydrothermally adv. By hydrothermal means. • HYDROTHERMAL adv. designating naturally hot underground water that has geological effects.
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| HYETOGRAPHICAL | • hyetographical adj. Of or pertaining to hyetography. • HYETOGRAPHICAL adj. relating to the measurement of rainfall, also HYETOGRAPHIC.
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| HYPERTROPHICAL | • hypertrophical adj. Alternative form of hypertrophic. • HYPERTROPHICAL adj. grown to an abnormal size, also HYPERTROPHIC.
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| ICHTHYOLATRIES | • ICHTHYOLATRY n. the worship of fish. | 
| ICHTHYOLATROUS | • ichthyolatrous adj. Fish-worshipping. • ICHTHYOLATROUS adj. worshipping fish.
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| OPHTHALMOMETRY | • ophthalmometry n. Measurement of the visual acuity and refractive power of the eyes. • OPHTHALMOMETRY n. measurement of the eye.
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| PHENYLTHIOUREA | • phenylthiourea n. Phenylthiocarbamide. • PHENYLTHIOUREA n. a crystalline compound used to test for the presence of a certain dominant gene (the compound tasting bitter to those who possess the gene).
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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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| PHOSPHORYLATES | • phosphorylates v. Third-person singular simple present indicative form of phosphorylate. • PHOSPHORYLATE v. to cause (an organic compound) to take up or combine with phosphoric acid or a phosphorus-containing group.
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| PHOTOTHERMALLY | • photothermally adv. In a photothermal manner. • PHOTOTHERMAL adv. of or concerned with light and heat, esp. the production of heat by light, also PHOTOTHERMIC.
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| PLETHYSMOGRAPH | • plethysmograph n. (Medicine) An instrument for measuring changes in volume within an organ or whole body (usually via… • PLETHYSMOGRAPH n. an instrument for measuring change in body part size due to blood flow.
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| THALASSOGRAPHY | • thalassography n. The scientific study of marine life. • THALASSOGRAPHY n. the science of the sea.
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| WHOLEHEARTEDLY | • wholeheartedly adv. In a wholehearted manner; enthusiastically; without reserve. • whole-heartedly adv. Alternative spelling of wholeheartedly.
 • WHOLEHEARTED adv. completely and sincerely devoted, determined, or enthusiastic.
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