| HELIANTHEMUMS | • helianthemums n. Plural of helianthemum. • HELIANTHEMUM n. a garden flower with papery yellow or orange flowers, aka rockrose. |
| HIGHFALUTINGS | • HIGHFALUTING n. bombastic discourse. |
| HYDROSULPHIDE | • hydrosulphide n. (Britain) Alternative spelling of hydrosulfide. • HYDROSULPHIDE n. a compound formed by action of hydrogen sulphide on a hydroxide. |
| HYDROSULPHITE | • hydrosulphite n. Alternative spelling of hydrosulfite. • HYDROSULPHITE n. a salt of hydrosulphurous acid; esp. the sodium salt, used as a reagent. |
| HYPOSULPHITES | • hyposulphites n. Plural of hyposulphite. • HYPOSULPHITE n. a salt of hyposulphurous acid. |
| HYPOSULPHURIC | • hyposulphuric adj. Alternative spelling of hyposulfuric. • HYPOSULPHURIC adj. denoting a kind of acid. |
| ITHYPHALLUSES | • ITHYPHALLUS n. an erect phallus. |
| LEPRECHAUNISH | • leprechaunish adj. Resembling or characteristic of a leprechaun. • LEPRECHAUNISH adj. like a leprechaun, a small supernatural creature in Irish folklore. |
| LIGHTHOUSEMAN | • lighthouseman n. The keeper of a lighthouse. • LIGHTHOUSEMAN n. one who keeps a lighthouse. |
| LIGHTHOUSEMEN | • lighthousemen n. Plural of lighthouseman. • LIGHTHOUSEMAN n. one who keeps a lighthouse. |
| PLOUGHMANSHIP | • ploughmanship n. Skill in ploughing. • PLOUGHMANSHIP n. the craft of a ploughman, also PLOWMANSHIP. |
| PLOUGHWRIGHTS | • ploughwrights n. Plural of ploughwright. • PLOUGHWRIGHT n. one who makes ploughs, also PLOWWRIGHT. |
| SPATHIPHYLLUM | • spathiphyllum n. (Botany) Any plant of the genus Spathiphyllum. • SPATHIPHYLLUM n. any tropical plant of the genus Spathiphyllum, having lance-shaped leaves and fleshy white spadices of flowers in white spathes. |
| THERMOPHILOUS | • thermophilous adj. Of or pertaining to a thermophile. • THERMOPHILOUS adj. of plants etc. requiring or thriving in high temperatures, also THERMOPHIL, THERMOPHILE, THERMOPHILIC. |
| THIOSULPHATES | • thiosulphates n. Plural of thiosulphate. • THIOSULPHATE n. any salt of thiosulphuric acid, also THIOSULFATE. |
| THIOSULPHURIC | • thiosulphuric adj. (Inorganic chemistry, chiefly Britain) Alternative spelling of thiosulfuric. • THIOSULPHURIC adj. as in thiosulphuric acid, sulphuric acid in which one atom of oxygen is replaced by sulphur. |
| UNHEALTHINESS | • unhealthiness n. The state of being unhealthy. • UNHEALTHINESS n. the state of being unhealthy. |
| UNPHILOSOPHIC | • unphilosophic adj. Not philosophic. • UNPHILOSOPHIC adj. not philosophic, also UNPHILOSOPHICAL. |
| XIPHOPHYLLOUS | • xiphophyllous adj. (Botany) Having sword-shaped leaves. • XIPHOPHYLLOUS adj. having sword-shaped leaves. |