| CIRRIFORM | • cirriform adj. (Biology, zoology) Formed like a cirrus or tendril. • CIRRIFORM adj. formed like a cirrus or tendril. |
| FERRETIER | • FERRETY adj. like a ferret in appearance. |
| FRIARBIRD | • friarbird n. Any of several species of large Australian honeyeaters in the genus Philemon. • friar␣bird n. Alternative form of friarbird. • FRIARBIRD n. an Australian honeyeater with featherless head. |
| FRIPPERER | • fripperer n. (Obsolete) A fripper; one who deals in frippery or old clothes. • FRIPPERER n. (archaic) one who deals in frippery or in old clothes, also FRIPPER. |
| FRITTERER | • fritterer n. Someone who fritters. • FRITTERER n. one who fritters. |
| FRUITERER | • fruiterer n. (Britain) One who sells fruit. • FRUITERER n. one who sells fruit. |
| FURRINERS | • furriners n. Plural of furriner. • FURRINER n. a foreigner. |
| FURROWIER | • FURROWY adj. furrowed. |
| INFERRERS | • inferrers n. Plural of inferrer. • INFERRER n. one who infers. |
| RAREFIERS | • rarefiers n. Plural of rarefier. • RAREFIER n. something or someone that rarefies. |
| REFERRING | • referring v. Present participle of refer. • referring n. The act by which somebody or something is referred; a reference. • REFER v. to direct to a source for help or information. |
| REFRAINER | • refrainer n. One who refrains. • REFRAINER n. one who refrains. |
| RETROFIRE | • retrofire adj. Describing rockets that are directed opposite to the direction of motion and used to slow down. • retrofire v. To fire the retrofire rockets of a craft. • RETROFIRE v. to cause a retrorocket to become ignited. |
| SERRIFORM | • serriform adj. (Biology) notched, as the blade of a saw. • SERRIFORM adj. resembling a notched or sawlike edge. |
| SURFRIDER | • surfrider n. A person who takes part in surfriding. • surf-rider n. Alternative spelling of surfrider. • surf␣rider n. (Obsolete) One who rides the surf usually on a surfboard; a surfer. |
| TERRIFIER | • terrifier n. One who, or that which, terrifies. • TERRIFIER n. one who terrifies. |