| 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. |
| HYPERAESTHESIA | • hyperaesthesia n. Alternative spelling of hyperesthesia. • hyperæsthesia n. Obsolete form of hyperaesthesia. • HYPERAESTHESIA n. excessive sensitivity, also HYPERESTHESIA. |
| HYPERAESTHESIC | • HYPERAESTHESIC adj. excessively sensitive, also HYPERAESTHETIC. |
| HYPERESTHESIAS | • hyperesthesias n. Plural of hyperesthesia. • HYPERESTHESIA n. excessive sensitivity, also HYPERAESTHESIA. |
| HYPHENISATIONS | • HYPHENISATION n. the process of hyphenising, also HYPHENIZATION. |
| HYPOPHOSPHATES | • hypophosphates n. Plural of hypophosphate. • HYPOPHOSPHATE n. any salt or ester of hypophosphoric acid. |
| ICHTHYOPSIDANS | • ICHTHYOPSIDAN n. a member of the Ichthyopsida, amphibians, fishes and fishlike vertebrates, also ICHTHYOPSID. |
| ONYCHOPHAGISTS | • onychophagists n. Plural of onychophagist. • ONYCHOPHAGIST n. one who bites their fingernails. |
| 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. |
| PHOTOSYNTHATES | • photosynthates n. Plural of photosynthate. • PHOTOSYNTHATE n. a product of photosynthesis. |
| PSYCHASTHENIAS | • psychasthenias n. Plural of psychasthenia. • PSYCHASTHENIA n. an incapacity to resolve doubts/uncertainties or to resist obsessions/compulsions that one knows are irrational. |
| PSYCHASTHENICS | • psychasthenics n. Plural of psychasthenic. • PSYCHASTHENIC n. one suffering from psychasthenia. |
| PSYCHOPATHISTS | • psychopathists n. Plural of psychopathist. • PSYCHOPATHIST n. a student of psychopathology. |
| PYROPHOSPHATES | • pyrophosphates n. Plural of pyrophosphate. • PYROPHOSPHATE n. a salt or ester of pyrophosphoric acid. |
| SPATHIPHYLLUMS | • spathiphyllums n. Plural of spathiphyllum. • SPATHIPHYLLUM n. any tropical plant of the genus Spathiphyllum, having lance-shaped leaves and fleshy white spadices of flowers in white spathes. |
| SYCOPHANTISHLY | • sycophantishly adv. In a sycophantish manner. • SYCOPHANTISH adv. like a sycophant. |
| TACHYGRAPHISTS | • tachygraphists n. Plural of tachygraphist. • TACHYGRAPHIST n. a shorthand writer, also TACHYGRAPH, TACHYGRAPHER. |
| THALASSOGRAPHY | • thalassography n. The scientific study of marine life. • THALASSOGRAPHY n. the science of the sea. |
| YACHTSMANSHIPS | • yachtsmanships n. Plural of yachtsmanship. • YACHTSMANSHIP n. the art of sailing a yacht. |