| FLUOROTYPES | • fluorotypes n. Plural of fluorotype. • FLUOROTYPE n. (obsolete) photography by means of fluorides. |
| FOETIPAROUS | • foetiparous adj. Alternative form of fetiparous. • FOETIPAROUS adj. of marsupials, such as the kangaroo, giving birth to incompletely developed offspring, also FETIPAROUS. |
| FORETOPMAST | • foretopmast n. (Nautical) The mast above the foretop. • FORETOPMAST n. the mast above the foretop platform. |
| FORTEPIANOS | • fortepianos n. Plural of fortepiano. • FORTEPIANO n. the eighteenth century name for an early type of piano; a fortepiano note. |
| OUTPERFORMS | • outperforms v. Third-person singular simple present indicative form of outperform. • OUTPERFORM v. to exceed in performance. |
| PERFORATORS | • perforators n. Plural of perforator. • PERFORATOR n. a machine for perforating. |
| PIANOFORTES | • pianofortes n. Plural of pianoforte. • piano-fortes n. Plural of piano-forte. • PIANOFORTE n. (Italian) a large keyboard musical instrument. |
| POSTFORMING | • postforming v. Present participle of postform. • POSTFORM v. to shape subsequently. |
| PROFOUNDEST | • profoundest adj. Superlative form of profound: most profound. • PROFOUND adj. very deep. |
| PUSSYFOOTER | • pussyfooter n. One who pussyfoots. • PUSSYFOOTER n. one who pussyfoots. |
| RUSTPROOFED | • rustproofed v. Simple past tense and past participle of rustproof. • RUSTPROOF v. to make resistant to rust, such as by applying a coating. |
| SPOONDRIFTS | • spoondrifts n. Plural of spoondrift. • spoon-drifts n. Plural of spoon-drift. • SPOONDRIFT n. the ocean spray which is blown by the wind, also SPINDRIFT. |
| THORNPROOFS | • thornproofs n. (Dated) Thornproof trousers. • THORNPROOFS n. garments that resist penetration by thorns. |
| WATERPROOFS | • waterproofs v. Third-person singular simple present indicative form of waterproof. • waterproofs n. Plural of waterproof. • WATERPROOF v. to make waterproof. |