| EIGHTEENTHLY | • eighteenthly adv. In the eighteenth place; eighteenth in a row. • EIGHTEENTH adv. number eighteen in sequence. |
| ETHOXYETHANE | • ethoxyethane n. (Organic chemistry, systematic name) diethyl ether. • ETHOXYETHANE n. a type of ether, aka diethyl ether, an isomer of butanol. |
| HEATHENISHLY | • heathenishly adv. In the manner of heathens. • HEATHENISH adv. resembling or characteristic of heathens. |
| HEMERYTHRINS | • hemerythrins n. Plural of hemerythrin. • HEMERYTHRIN n. an iron-containing respiratory pigment in the blood of various chiefly marine invertebrates. |
| HETEROCHRONY | • heterochrony n. (Biology) the variation in ontogeny of individuals of a species that gives rise to evolution. • HETEROCHRONY n. divergence from normal time sequence in development, also HETEROCHRONISM. |
| HONEYBUNCHES | • honeybunches n. Plural of honeybunch. • HONEYBUNCH n. (colloquial) a term of endearment. |
| HONEYMONTHED | • HONEYMONTH v. (obsolete) to spend one's honeymoon, also HONEYMOON. |
| HYMENOPHORES | • hymenophores n. Plural of hymenophore. • HYMENOPHORE n. the fruiting body of some basidiomycetous fungi. |
| HYPERSTHENES | • hypersthenes n. Plural of hypersthene. • HYPERSTHENE n. a rock-forming orthorhombic silicate of magnesium and ferrous iron. |
| HYPERSTHENIA | • hypersthenia n. (Pathology, archaic) A morbid condition marked by excessive excitement of all the vital phenomena. • HYPERSTHENIA n. a morbid condition marked by excessive excitement of all the vital phenomena. |
| HYPERSTHENIC | • hypersthenic adj. (Mineralogy) Composed of, or containing, hypersthene. • hypersthenic adj. Having or relating to hypersthenia. • hypersthenic n. A person who has hypersthenia. |
| HYPOTHENUSES | • hypothenuses n. (Dated) plural of hypothenuse. • HYPOTHENUSE n. the longest side of a right-angled triangle, also HYPOTENUSE. |
| 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. |
| NYCHTHEMERON | • nychthemeron n. A period of one day and one night, a date: in the West, this is a period of 24 consecutive hours. • NYCHTHEMERON n. (Greek) a full period of a day and night. |
| PHANEROPHYTE | • phanerophyte n. (Biology) Any woody plant that carries its dormant buds openly on branches above the ground. • PHANEROPHYTE n. a perennial plant that bears its perennating buds well above the surface of the ground. |
| 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. |
| 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. |
| UNHYPHENATED | • unhyphenated v. Simple past tense and past participle of unhyphenate. • unhyphenated adj. Lacking a hyphen. • unhyphenated adj. (North America) Of people, belonging to a single ethnicity or nationality: names for multi-ethnic/multi-nationality… |