| FLAMENCO | • flamenco n. (Uncountable) A genre of folk music and dance native to Andalusia, in Spain. • flamenco n. (Countable) A song or dance performed in such a style. • flamenco v. (Intransitive) To dance flamenco. |
| FLAMEOUT | • flameout n. The act of flaming out or burning out; extinguishing. • flameout n. (Figurative) The act of quitting or failing, especially due to overwork or in a dramatic manner. • flameout n. The sudden extinguishing of the flame of a burner (due to obstruction of fuel or airflow). |
| FLAYSOME | • flaysome adj. (UK dialectal, Northern England, Scotland) Terrifying; frightful. • FLAYSOME adj. (dialect) frightening. |
| FLEASOME | • fleasome adj. (Poetic, humorous) Covered in fleas. • FLEASOME adj. full of fleas. |
| FOAMABLE | • foamable adj. Capable of being converted into foam. • FOAMABLE adj. able to foam. |
| FOAMLESS | • foamless adj. Without foam. • FOAMLESS adj. without foam. |
| FOAMLIKE | • foamlike adj. Resembling foam; foamy. • FOAMLIKE adj. like foam. |
| FORMABLE | • formable adj. Able to be formed. • FORMABLE adj. able to be formed. |
| FORMULAE | • formulae n. Plural of formula. • formulæ n. (Obsolete or archaic) plural of formula. • FORMULA n. (Latin) a prescribed or set form. |
| FUMAROLE | • fumarole n. An opening in the ground that emits steam and gases due to volcanic activity. • FUMAROLE n. a hole which emits volcanic vapours, also FUMEROLE. |
| GAMEFOWL | • gamefowl n. A gamebird. • GAMEFOWL n. a gamecock. |
| LEAFMOLD | • leafmold n. Alternative form of leaf mold. • leaf␣mold n. Decomposed or composted remains of leaves. • leaf␣mold n. Soil consisting principally of layers of decomposed leaves. |
| LEAFWORM | • leafworm n. Any caterpillar that eats the leaves of plants. • leaf-worm n. Alternative spelling of leafworm. • LEAFWORM n. a moth larva that feeds on leaves. |
| MATFELON | • matfelon n. (Obsolete) knapweed. • MATFELON n. the greater knapweed, also MATFELLON. |
| MEATLOAF | • meatloaf n. A dish of ground meat (usually made from ground beef, although lamb, pork, veal, venison, poultry and… • meat␣loaf n. Alternative form of meatloaf. • MEATLOAF n. a baked loaf of ground meat. |
| MEGAFLOP | • megaflop n. (Computing) megaflops (one million FLOPS, or floating point operations per second). • megaflop n. (Informal) A major flop; a film or other production that is a great failure. • MEGAFLOP n. a measure of computing speed in terms of number of floating point operations per second. |