| HIPPEASTRUMS | • HIPPEASTRUM n. any plant of the South American genus Hippeastrum, bulbous, with white or red flowers. |
| HIPPOCENTAUR | • hippocentaur n. Centaur. • HIPPOCENTAUR n. a mythical creature, half man and half horse. |
| HYPOSULPHATE | • hyposulphate n. (Inorganic chemistry) Alternative form of hyposulfate. • HYPOSULPHATE n. a dithionate. |
| PERSULPHATES | • persulphates n. Plural of persulphate. • PERSULPHATE n. that sulphate of a metal which contains the relatively greater quantity of oxygen or of the acid radical, also PERSULFATE. |
| PHILADELPHUS | • philadelphus n. (Botany) Any of the genus Philadelphus of shrubs. • Philadelphus prop.n. A taxonomic genus within the family Hydrangeaceae – the mock oranges. • PHILADELPHUS n. a flowering shrub, aka mock orange. |
| PNEUMOGRAPHS | • pneumographs n. Plural of pneumograph. • PNEUMOGRAPH n. an instrument for measuring and recording respiration. |
| PREPURCHASED | • prepurchased v. Simple past tense and past participle of prepurchase. • PREPURCHASE v. to purchase in advance. |
| PREPURCHASES | • prepurchases v. Third-person singular simple present indicative form of prepurchase. • PREPURCHASE v. to purchase in advance. |
| PSEUDOGRAPHS | • pseudographs n. Plural of pseudograph. • PSEUDOGRAPH n. spurious writing; forgery. |
| PSEUDOGRAPHY | • pseudography n. False writing; forgery. • pseudography n. Incorrect spelling. • PSEUDOGRAPHY n. unsatisfactory spelling. |
| PURPLEHEARTS | • purplehearts n. Plural of purpleheart. • purple␣hearts n. Plural of purple heart. • Purple␣Hearts n. Plural of Purple Heart. |
| PYROSULPHATE | • pyrosulphate n. (Inorganic chemistry, Britain) Alternative spelling of pyrosulfate. • PYROSULPHATE n. a salt of sulphur. |
| UNAPPROACHED | • unapproached adj. Not approached. • UNAPPROACHED adj. not approached. |
| UNHAPPENINGS | • unhappenings n. Plural of unhappening. • UNHAPPENING n. something that is not a happening. |
| XIPHOPAGUSES | • XIPHOPAGUS n. a set of Siamese twins joined in the region of the xiphoid cartilage. |