| CINQUEFOILS | • cinquefoils n. Plural of cinquefoil. • CINQUEFOIL n. a wildflower, aka rockrose. |
| EFFICACIOUS | • efficacious adj. (Formal) Effective; possessing efficacy. • EFFICACIOUS adj. having the power to produce a desired effect. |
| FACINERIOUS | • FACINERIOUS adj. (Shakespeare) extremely wicked, also FACINOROUS. |
| FILOVIRUSES | • filoviruses n. Plural of filovirus. • Filoviruses n. Plural of Filovirus. • FILOVIRUS n. any member of a family of viruses that includes the agents responsible for Ebola virus disease and Marburg disease. |
| FLOURISHIER | • FLOURISHY adj. full of flourishes. |
| FLUORIDISED | • fluoridised v. Simple past tense and past participle of fluoridise. • FLUORIDISE v. to add fluoride to drinking water, also FLUORIDIZE. |
| FLUORIDISES | • fluoridises v. Third-person singular simple present indicative form of fluoridise. • FLUORIDISE v. to add fluoride to drinking water, also FLUORIDIZE. |
| FLUORIDIZES | • fluoridizes v. Third-person singular simple present indicative form of fluoridize. • FLUORIDIZE v. to add fluoride to drinking water, also FLUORIDISE. |
| FUNGOSITIES | • fungosities n. Plural of fungosity. • FUNGOSITY n. the quality of being fungous. |
| FURIOSITIES | • FURIOSITY n. madness. |
| HOUSEWIFIER | • HOUSEWIFEY adj. like a housewife, also HOUSEWIFELY. |
| INTERFUSION | • interfusion n. Mutual fusion or blending. • INTERFUSION n. the act of interfusing. |
| REINFUSIONS | • reinfusions n. Plural of reinfusion. |
| SPINIFEROUS | • spiniferous adj. Having spines or thorns; spiny, thorny. • SPINIFEROUS adj. bearing spines, also SPINIGEROUS. |
| SPIRIFEROUS | • spiriferous adj. Of or relating to spirifers. • SPIRIFEROUS adj. of a shell, having a spire. |
| URINIFEROUS | • uriniferous adj. Conveying urine. • URINIFEROUS adj. bearing urine. |
| VENEFICIOUS | • veneficious adj. (Obsolete) Acting by poison; used in poisoning or sorcery. • VENEFICIOUS adj. acting by poison or potions or by sorcery, also VENEFIC, VENEFICAL, VENEFICOUS. |
| ZINCIFEROUS | • zinciferous adj. Containing or producing zinc. • ZINCIFEROUS adj. bearing zinc, also ZINKIFEROUS. |
| ZINKIFEROUS | • zinkiferous adj. Alternative spelling of zinciferous. • ZINKIFEROUS adj. bearing zinc, also ZINCIFEROUS. |