| HYPOSULPHATE | • hyposulphate n. (Inorganic chemistry) Alternative form of hyposulfate. • HYPOSULPHATE n. a dithionate. |
| HYPOSULPHITE | • hyposulphite n. Alternative spelling of hyposulfite. • HYPOSULPHITE n. a salt of hyposulphurous acid. |
| PLURIPOTENCY | • pluripotency n. (Biology) The state of being pluripotent. |
| POLYPETALOUS | • polypetalous adj. (Botany) having a corolla composed of distinct, separable petals. • POLYPETALOUS adj. separate petals. |
| POLYSEPALOUS | • polysepalous adj. (Botany, of a calyx) having separate sepals. • POLYSEPALOUS adj. having separate sepals. |
| POLYSULPHIDE | • polysulphide n. (Chemistry) Alternative spelling of polysulfide. • POLYSULPHIDE n. a sulfide containing two or more atoms of sulfur in the molecule, also POLYSULFIDE. |
| PREOCCUPANCY | • preoccupancy n. The act or right of taking possession before another. • PREOCCUPANCY n. an act or the right of taking possession before another. |
| PREOCCUPYING | • preoccupying v. Present participle of preoccupy. • PREOCCUPY v. to engross or fill the mind of. |
| PROSPEROUSLY | • prosperously adv. In a prosperous manner; so as to prosper. • PROSPEROUS adv. thriving, affluent. |
| PSEUDOGRAPHY | • pseudography n. False writing; forgery. • pseudography n. Incorrect spelling. • PSEUDOGRAPHY n. unsatisfactory spelling. |
| PURPOSEFULLY | • purposefully adv. In a purposeful manner. • purposefully adv. (Proscribed) On purpose, purposely, deliberately. • PURPOSEFUL adv. showing purpose. |
| PYROPHORUSES | • PYROPHORUS n. any substance capable of igniting spontaneously on exposure to air. |
| PYROSULPHATE | • pyrosulphate n. (Inorganic chemistry, Britain) Alternative spelling of pyrosulfate. • PYROSULPHATE n. a salt of sulphur. |
| SUPERPOLYMER | • superpolymer n. (Chemistry, dated) Any aliphatic polyester. • SUPERPOLYMER n. a superior polymer. |
| SUPPLETORILY | • SUPPLETORY adv. supplemental, also SUPPLETIVE. |
| SUPPORTIVELY | • supportively adv. In a supportive way. • SUPPORTIVE adv. tending to support. |