| BULLETPROOF | • bulletproof adj. (Of a material) Capable of withstanding a direct shot by a bullet fired from a gun. • bulletproof adj. (Idiomatic) Reliable, infallible, sturdy or error-tolerant. • bulletproof adj. (Usually of an idea or concept) Unbreakable, very tough. |
| COUNTERFLOW | • counterflow n. A flow in the opposite direction; or the flow of two fluids in opposite directions. • counterflow v. To flow in the opposite direction. • COUNTERFLOW n. the flow of a fluid in opposite directions, as in an apparatus. |
| COUNTERFOIL | • counterfoil n. The part of a cheque that is retained in the chequebook as a record; a stub. • COUNTERFOIL n. part of ticket or cheque retained by giver. |
| FEROCIOUSLY | • ferociously adv. In a ferocious manner, particularly violent and aggressive. • ferociously adv. Intensely or extremely. • FEROCIOUS adv. fierce. |
| FLAVOURSOME | • flavoursome adj. Britain standard spelling of flavorsome. • FLAVOURSOME adj. full of flavour, also FLAVORSOME. |
| FLORIFEROUS | • floriferous adj. (Botany) That bears flowers (especially lots of flowers). • FLORIFEROUS adj. bearing flowers. |
| FLUOROMETER | • fluorometer n. An instrument used to detect and measure fluorescence. • FLUOROMETER n. an instrument for measuring fluorescence, also FLUORIMETER. |
| FLUOROMETRY | • fluorometry n. (Chemistry, physics) An analytical technique that uses fluorescence to detect and identify small samples… • FLUOROMETRY n. measurement by fluorometer, also FLUORIMETRY. |
| FLUOROPHORE | • fluorophore n. (Biochemistry) A molecule or functional group which is capable of fluorescence. • FLUOROPHORE n. a chemical group responsible for fluorescence. |
| FLUOROSCOPE | • fluoroscope n. (Now rare) A device used to measure the fluorescence of a solution. • fluoroscope n. (Medicine) A device used to view continuous live X-ray images on a fluorescent screen. • fluoroscope v. (Transitive) To examine with a fluoroscope. |
| FLUOROTYPES | • fluorotypes n. Plural of fluorotype. • FLUOROTYPE n. (obsolete) photography by means of fluorides. |
| FORECLOSURE | • foreclosure n. (Law) the proceeding, by a creditor, to regain property or other collateral following a default on mortgage payments. • foreclosure n. (Psychoanalysis) The absence of a symbolic father for a fatherless child, as a cause for psychosis. • FORECLOSURE n. an act or instance of foreclosing. |
| OVULIFEROUS | • ovuliferous adj. Bearing ovules. • OVULIFEROUS adj. bearing ovules. |
| PROLIFEROUS | • proliferous adj. Producing many offspring; prolific or proliferative. • proliferous adj. (Botany) producing many buds or offshoots from leaves or flowers. • proliferous adj. (Zoology) reproducing by budding. |