| DIOLEFIN | • diolefin n. (Organic chemistry) An olefin that has two double bonds; a diene. • DIOLEFIN n. a compound containing two double bonds between hydrogen atoms, aka diene. |
| FELONIES | • felonies n. Plural of felony. • FELONY n. a grave crime. |
| FLECTION | • flection n. Alternative spelling of flexion. • FLECTION n. a bend or a fold. |
| FLEXIONS | • flexions n. Plural of flexion. • FLEXION n. the act of bending, or state of being bent, also FLECTION. |
| FLORIGEN | • florigen n. (Botany) a supposed hormone that causes flowering in plants. • FLORIGEN n. a plant hormone. |
| FLUORINE | • fluorine n. (Uncountable) The chemical element (symbol F) with an atomic number of 9. It is the lightest of the… • fluorine n. (Chemistry, countable) A single atom of this element. • FLUORINE n. a gaseous element, also FLUORIN. |
| FOILSMEN | • foilsmen n. Plural of foilsman. • FOILSMAN n. a fencer. |
| FORELAIN | • forelain v. Past participle of forelie. • FORELAY v. to wait in ambush. |
| INFOLDED | • infolded v. Simple past tense and past participle of infold. • INFOLD v. to fold inwards. |
| INFOLDER | • infolder n. Archaic form of enfolder. • INFOLDER n. one that infolds. |
| LIFELONG | • lifelong adj. Extending for the entire duration of life. • life-long adj. Alternative spelling of lifelong. • life␣long adj. Alternative spelling of lifelong. |
| LOBEFINS | • lobefins n. Plural of lobefin. • LOBEFIN n. a type of fish to which the coelacanth belongs. |
| NINEFOLD | • ninefold adj. Having nine parts. • ninefold adj. Having nine times as much or as many. • ninefold adv. By a factor of nine. |
| NOISEFUL | • noiseful adj. (Obsolete) Loud; clamorous. • NOISEFUL adj. full of noise. |
| OLEFIANT | • olefiant adj. That produces oil. • OLEFIANT adj. oil-forming, as in olefiant ethylene. |
| OLEFINES | • olefines n. Plural of olefine. • OLEFINE n. a hydrocarbon of the ethylene series, also OLEFIN. |
| OLEFINIC | • olefinic adj. Characteristic of, or containing olefins. • OLEFINIC adj. of or like an olefin, a hydrocarbon of the ethylene series. |
| ROOFLINE | • roofline n. The profile of a roof or a series of roofs. • ROOFLINE n. the profile of a roof. |
| UNFOILED | • unfoiled adj. Not foiled. • UNFOILED adj. not foiled. |