| CHLOROPHYTUM | • CHLOROPHYTUM n. any plant of the genus Chlorophytum, grown as pot plants for their long narrow leaves. | 
| FORTHRIGHTLY | • forthrightly adv. In a forthright manner. • FORTHRIGHT adv. straightforward.
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| HELIOTHERAPY | • heliotherapy n. Any medical therapy by exposure to light. • HELIOTHERAPY n. medical treatment by exposure to the sun's rays.
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| HETEROPHYLLY | • heterophylly n. (Botany) Marked changes in leaf morphology induced by environmental conditions; the ability to display such changes. • heterophylly n. (Botany) Significant variation in leaf shape on a same plant.
 • HETEROPHYLLY n. the state of being heterophyllous.
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| HETEROTHALLY | • heterothally n. Heterothallism. • HETEROTHALLY n. the state of being heterothallic, also HETEROTHALLISM.
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| HYDROPHILITE | • hydrophilite n. (Mineralogy) A soft white mineral formed from anhydrous calcium chloride. • HYDROPHILITE n. native calcium chloride.
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| HYDROTHERMAL | • hydrothermal adj. Of, or relating to hot water. • hydrothermal adj. (Geology) Of or relating to emanations of hot water that are rich in minerals, or to the rocks formed from them.
 • HYDROTHERMAL adj. designating naturally hot underground water that has geological effects.
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| HYPOCHLORITE | • hypochlorite n. (Chemistry) any salt of hypochlorous acid; used as a household bleach. • HYPOCHLORITE n. a salt of hypochlorous acid.
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| ICHTHYOLATRY | • ichthyolatry n. The worship of fish, or of fish-shaped idols. • ICHTHYOLATRY n. the worship of fish.
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| METHOXYCHLOR | • methoxychlor n. (Organic chemistry) A synthetic organochlorine used as an insecticide. • METHOXYCHLOR n. a relatively nontoxic organochlorine insecticide.
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| ORNITHOPHILY | • ornithophily n. Pollination by birds. • ORNITHOPHILY n. pollination by birds.
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| ORTHOCEPHALY | • orthocephaly n. The condition of being orthocephalic. • ORTHOCEPHALY n. the state of being orthocephalic.
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| PHILANTHROPY | • philanthropy n. (Chiefly uncountable) Benevolent altruism with the intention of increasing the well-being of humankind. • philanthropy n. (Uncountable) Charitable giving, charity.
 • philanthropy n. (Countable) A philanthropic act.
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| POLYRHYTHMIC | • polyrhythmic adj. (Music) Having multiple, simultaneous rhythms. • POLYRHYTHMIC adj. relating to polyrhythm.
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