| DOUBTFULS | • doubtfuls n. Plural of doubtful. • DOUBTFUL n. something doubtful e.g. a starter in a race. |
| FATUOUSLY | • fatuously adv. With smug stupidity or vacuous silliness; idiotically. • FATUOUS adv. silly; purposeless, also FATUITOUS. |
| FISTULOUS | • fistulous adj. Of or pertaining to a fistula. • fistulous adj. Resembling a reed; hollow and tubular. • FISTULOUS adj. hollow and cylindrical, like a pipe or reed, also FISTULAR, FISTULATE, FISTULOSE. |
| FLOCCULUS | • flocculus n. A small fluffy tuft. • flocculus n. (Anatomy) Either of two small lobes on the posterior border of the cerebellum. • flocculus n. (Astronomy) A marking on the surface of the sun associated with a solar prominence. |
| FULGOROUS | • fulgorous adj. Flashing or shining brightly. • FULGOROUS adj. flashing like lightning, also FULGUROUS, FULGURANT. |
| FULGUROUS | • fulgurous adj. Resembling a lightning flash; fulgurant. • fulgurous adj. Full of lightning. • FULGUROUS adj. flashing like lightning, also FULGOROUS, FULGURANT. |
| FULMINOUS | • fulminous adj. Explosive. • fulminous adj. (Figurative) furious. • FULMINOUS adj. relating to thunder and lightning, also FULMINEOUS. |
| FURFUROLS | • furfurols n. Plural of furfurol. • FURFUROL n. a liquid obtained by heating bran with dilute sulphuric acid, also FURAL, FURFURAL, FURFURALDEHYDE, FURFUROLE, FUROL, FUROLE. |
| FURIOUSLY | • furiously adv. In a furious manner; angrily. • furiously adv. Quickly; frantically; with great effort or speed. • furiously adv. Intensely, as with embarrassment. |
| FURLOUGHS | • furloughs n. Plural of furlough. • furloughs v. Third-person singular simple present indicative form of furlough. • Furloughs prop.n. Plural of Furlough. |
| GOURDFULS | • gourdfuls n. Plural of gourdful. • GOURDFUL n. the contents of a gourd. |
| HOUSEFULS | • housefuls n. Plural of houseful. • HOUSEFUL n. as much as a house can hold. |
| MOUTHFULS | • mouthfuls n. Plural of mouthful. • MOUTHFUL n. as much as a mouth can hold. |
| OUTBLUFFS | • outbluffs v. Third-person singular simple present indicative form of outbluff. • OUTBLUFF v. to surpass in bluffing. |
| POUCHFULS | • pouchfuls n. Plural of pouchful. • POUCHFUL n. as much as a pouch can hold. |
| SOULFULLY | • soulfully adv. In a soulful manner. • SOULFUL adv. full of emotion. |
| SOURCEFUL | • SOURCEFUL adj. offering useful things. |
| SULFONIUM | • sulfonium n. (Inorganic chemistry) the univalent H3S+ cation, derived from sulfane. • sulfonium n. (Organic chemistry) any derivative of this cation in which one or more hydrogen atoms are replaced by… • SULFONIUM n. the positively charged group SH3, its salts or derivatives, also SULPHONIUM. |
| SULFUROUS | • sulfurous adj. (American spelling) Containing sulfur. • sulfurous adj. (Chemistry) Of, or relating to sulfur, especially in its lower oxidation state. • SULFUROUS adj. containing sulphur in lower valency; pertaining to hellfire, also SULPHUROUS. |