| EIGHTEENTHLY | • eighteenthly adv. In the eighteenth place; eighteenth in a row. • EIGHTEENTH adv. number eighteen in sequence. |
| HARDHEADEDLY | • hardheadedly adv. In a hardheaded manner. • HARDHEADED adv. stubborn, willful. |
| HEATHENISHLY | • heathenishly adv. In the manner of heathens. • HEATHENISH adv. resembling or characteristic of heathens. |
| HELIOTHERAPY | • heliotherapy n. Any medical therapy by exposure to light. • HELIOTHERAPY n. medical treatment by exposure to the sun's rays. |
| 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. |
| HETEROTHALLY | • heterothally n. Heterothallism. • HETEROTHALLY n. the state of being heterothallic, also HETEROTHALLISM. |
| HIEROGLYPHED | • hieroglyphed adj. Inscribed with hieroglyphs. • HIEROGLYPH v. to represent by hieroglyphs. |
| HOBBLEDEHOYS | • hobbledehoys n. Plural of hobbledehoy. • HOBBLEDEHOY n. an awkward young fellow. |
| HYPERTHERMAL | • hyperthermal adj. Of, pertaining to, or causing hyperthermia. • hyperthermal n. (Geology) Any of several brief geological periods of global warming. • HYPERTHERMAL adj. suffering from hyperthermia. |
| METHYLPHENOL | • METHYLPHENOL n. a type of aromatic organic compound, aka cresol. |
| NYCHTHEMERAL | • nychthemeral adj. Lasting a nychthemeron (24 hours). • NYCHTHEMERAL adj. (Greek) of or relating to a nychthemeron or 24-hour period. |
| PHENYLMETHYL | • phenylmethyl n. (Organic chemistry) Benzyl: the cyclic radical, ion or functional group having the formula C6H5CH2. • PHENYLMETHYL n. an ester of benzene, aka benzyl. |
| PHYLLOSPHERE | • phyllosphere n. (Biology) The above-ground surface of plants, viewed as a habitat for microorganisms. • PHYLLOSPHERE n. the surface of a leaf considered as a habitat, esp. for microorganisms. |
| SHELLFISHERY | • shellfishery n. A place where shellfish are caught or processed. • shellfishery n. (Uncountable) The catching of shellfish. • SHELLFISHERY n. a commercially exploited population of shellfish. |
| THEOPHYLLINE | • theophylline n. (Organic chemistry, pharmacology) A bitter crystalline compound present in small quantities in tea leaves… • THEOPHYLLINE n. an isomer of theobromine found in tea, used in medicine. |
| THIRTEENTHLY | • thirteenthly adv. In the thirteenth place; thirteenth in a row. • THIRTEENTH adv. number thirteen in sequence. |