| ELECTRIFIERS | • electrifiers n. Plural of electrifier. • ELECTRIFIER n. something or someone that electrifies. |
| FILIBUSTERER | • filibusterer n. A person who filibusters. • FILIBUSTERER n. one who filibusters. |
| FIRELIGHTERS | • firelighters n. Plural of firelighter. • FIRELIGHTER n. a piece of readily flammable material or other means of lighting a fire. |
| FISSIROSTRAL | • fissirostral adj. Having the bill cleft beyond the horny part, as in the case of swallows and goatsuckers. • FISSIROSTRAL adj. having a divided beak. |
| FLUORIMETRIC | • fluorimetric adj. Alternative form of fluorometric. • FLUORIMETRIC adj. relating to fluorometry. |
| FRITILLARIAS | • fritillarias n. Plural of fritillaria. • FRITILLARIA n. any of a widespread genus of bulbous herbs of the lily family with variably colored and often mottled or checkered flowers. |
| FRITILLARIES | • fritillaries n. Plural of fritillary. • FRITILLARY n. several kinds of spotted butterfly and bulbous plant. |
| INFILTRATORS | • infiltrators n. Plural of infiltrator. • INFILTRATOR n. one who infiltrates. |
| INFRAORBITAL | • infraorbital adj. (Anatomy, relational) Below the orbit of the eye. • infraorbital n. (Anatomy) Ellipsis of infraorbital bone.. • INFRAORBITAL adj. situated below the orbit of the eye. |
| INTERFERTILE | • interfertile adj. Capable of interbreeding. • INTERFERTILE adj. capable of interbreeding. |
| IRREFLECTION | • irreflection n. Lack of reflection or consideration. • IRREFLECTION n. the state of not being reflective, also IRREFLEXION. |
| IRREFLECTIVE | • irreflective adj. Without mental reflection. • IRREFLECTIVE adj. not reflective. |
| MICROFILTERS | • microfilters n. Plural of microfilter. • MICROFILTER n. a very small filter. |
| STROBILIFORM | • strobiliform adj. Shaped like a strobile. • STROBILIFORM adj. having the form of a strobil. |
| TERRIFICALLY | • terrifically adv. In a terrific or extreme way. • TERRIFIC adv. marvellous. |
| TERRIFYINGLY | • terrifyingly adv. In a terrifying manner. • TERRIFYING adv. TERRIFY, to cause terror in. |
| TRIFLURALINS | • trifluralins n. Plural of trifluralin. • TRIFLURALIN n. a herbicide used in the control of weeds. |