| BUTTERFLYING | • butterflying v. Present participle of butterfly. • BUTTERFLY v. to split almost entirely and spread apart e.g. a steak. |
| FLITTERMOUSE | • flittermouse n. (Now chiefly dialectal) A bat (flying mammal). • flitter-mouse n. Alternative form of flittermouse. • FLITTERMOUSE n. (dialect) a bat. |
| FLUIDEXTRACT | • fluidextract n. Dated form of fluid extract. • FLUIDEXTRACT n. an alcohol preparation of a plant-derived drug containing the active constituents of one gram of the dry drug in each milliliter. |
| FLUORAPATITE | • fluorapatite n. (Mineralogy) A calcium halophosphate mineral, in which fluoride replaces the hydroxide of apatite, that… • FLUORAPATITE n. a mineral consisting of calcium phosphate fluoride, the most common form of apatite. |
| FLUTTERINGLY | • flutteringly adv. In a fluttering manner. • FLUTTERINGLY adv. FLUTTERING. |
| FRUITFULLEST | • fruitfullest adj. Superlative form of fruitful: most fruitful. • FRUITFUL adj. productive. |
| INTERFACULTY | • interfaculty adj. Between faculties. • INTERFACULTY adj. between faculties. |
| MULTIFEATURE | • multifeature adj. Having multiple features. |
| REFUTABILITY | • refutability n. The ability to be refuted; disprovability. • REFUTABILITY n. the quality of being refutable. |
| SUBFERTILITY | • subfertility n. Abnormally low fertility. • SUBFERTILITY n. the state of being subfertile. |
| SULFURETTING | • sulfuretting v. Present participle of sulfuret. • SULFURET v. to treat with sulfur, also SULPHURET. |
| TRISTFULNESS | • tristfulness n. Sadness; sorrow; melancholy. • TRISTFULNESS n. the state of being tristful. |
| ULTRAFILTERS | • ultrafilters n. Plural of ultrafilter. • ULTRAFILTER v. to pass through an ultrafilter. |
| ULTRALEFTISM | • ultraleftism n. Ultraleft beliefs generally. • ULTRALEFTISM n. support of the extreme left. |
| ULTRALEFTIST | • ultraleftist n. A person of ultraleft politics. • ULTRALEFTIST n. one who supports the extreme Left. |
| UNFLATTERING | • unflattering adj. Not flattering. • unflattering v. Present participle of unflatter. • UNFLATTERING adj. not flattering. |