| APOPHYLLITES | • apophyllites n. Plural of apophyllite. • APOPHYLLITE n. a mineral, hydrated calcium potassium silicate, that exfoliates on heating. |
| CRYPTOPHYTES | • cryptophytes n. Plural of cryptophyte. • CRYPTOPHYTE n. any perennial plant that bears its buds below the soil or water surface. |
| EPIPHYTOTICS | • EPIPHYTOTIC n. a sudden outbreak of plant disease over extended geographical area. |
| HYPOPLASTIES | • hypoplasties n. Plural of hypoplasty. • HYPOPLASTY n. incomplete development of a part or organ, also HYPOPLASIA. |
| HYPOSTROPHES | • hypostrophes n. Plural of hypostrophe. • HYPOSTROPHE n. a return to the primary argument after digression. |
| 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. |
| PETROPHYSICS | • petrophysics n. (Geology, physics) The physics of rock, especially rock that acts as a reservoir for petroleum or other fluids. • PETROPHYSICS n. that branch of physics relating to the physical properties of rocks. |
| PHOTOTYPESET | • phototypeset v. (Transitive) To typeset by a phototypesetting process. • PHOTOTYPESET v. to set (type matter) by phototypesetting. |
| PHYTOPHAGIES | • PHYTOPHAGY n. of insects, feeding on plants. |
| PSAMMOPHYTES | • psammophytes n. Plural of psammophyte. • PSAMMOPHYTE n. a plant adapted to growing in sand. |
| PYROSULPHATE | • pyrosulphate n. (Inorganic chemistry, Britain) Alternative spelling of pyrosulfate. • PYROSULPHATE n. a salt of sulphur. |
| SPERMOPHYTES | • spermophytes n. Plural of spermophyte. • SPERMOPHYTE n. any member of the Spermatophyta, seed-bearing plants, also SPERMAPHYTE. |
| SPERMOPHYTIC | • spermophytic adj. (Botany) Capable of producing seeds. • SPERMOPHYTIC adj. of or like a spermaphyte, also SPERMAPHYTIC. |
| TRYPTOPHANES | • tryptophanes n. Plural of tryptophane. • TRYPTOPHANE n. an essential amino acid, also TRYPTOPHAN. |
| TYPOGRAPHERS | • typographers n. Plural of typographer. • TYPOGRAPHER n. one who designs type. |
| TYPOGRAPHIES | • typographies n. Plural of typography. • TYPOGRAPHY n. the art of printing or using type. |