| BIOWARFARES | Sorry, definition not available. |
| CALORIFIERS | • calorifiers n. Plural of calorifier. • CALORIFIER n. an apparatus for heating water in a tank. |
| DISFAVOURER | • disfavourer n. One who disfavours. • DISFAVOURER n. one who disfavours. |
| FIBERBOARDS | • fiberboards n. Plural of fiberboard. • FIBERBOARD n. (US) a material made from compressed wood fibres, also FIBREBOARD. |
| FIBREBOARDS | • fibreboards n. Plural of fibreboard. • FIBREBOARD n. a material made from compressed wood fibres, also FIBERBOARD. |
| FIREDRAGONS | • firedragons n. Plural of firedragon. • FIREDRAGON n. a fire-breathing dragon, also FIREDRAKE. |
| FOREORDAINS | • foreordains v. Third-person singular simple present indicative form of foreordain. • FOREORDAIN v. to ordain or appoint beforehand. |
| FORMALISERS | • formalisers n. Plural of formaliser. • FORMALISER n. one who formalises, also FORMALIZER. |
| FORMALIZERS | • formalizers n. Plural of formalizer. • FORMALIZER n. one who formalizes, also FORMALISER. |
| FORMICARIES | • formicaries n. Plural of formicary. • FORMICARY n. an anthill, also FORMICARIUM. |
| FORMULARIES | • formularies n. Plural of formulary. • FORMULARY n. a book of formulae or precedents. |
| FORMULARISE | • formularise v. (Britain) To express as a formula, to formulate. • FORMULARISE v. to state in or reduce to a formula, also FORMULARIZE. |
| FORSWEARING | • forswearing v. Present participle of forswear. • forswearing n. The act of one who forswears. • FORSWEAR v. to deny under oath, also FORESWEAR. |
| INFRAORDERS | • infraorders n. Misspelling of infra-orders. • infra-orders n. Plural of infraorder. |
| PASSERIFORM | • passeriform adj. Of or pertaining to a sparrow; sparrow-like; bird-like. • passeriform n. Any bird of the order Passeriformes. • PASSERIFORM adj. having the form of a perching bird. |
| RAINFORESTS | • rainforests n. Plural of rainforest. • rain␣forests n. Plural of rain forest. • RAINFOREST n. a complex community dominated by trees, with high rainfall, many epiphytes and lianes. |
| RAZORFISHES | • razorfishes n. Plural of razorfish. • RAZORFISH n. a lamellibranch mollusc with a shell like an old-fashioned razor handle, also RAZORCLAM. |
| REFRACTIONS | • refractions n. Plural of refraction. • REFRACTION n. the bending of waves or rays of energy. |