12-letter words containing f, r, i, o
- irish coffee — a mixture of hot coffee and Irish whiskey, sweetened and topped with whipped cream.
- iron foundry — ironworks, forgery
- iron sulfate — ferrous sulfate.
- irreflection — lack of careful or long consideration
- irreformable — insusceptible to reforming influences; incorrigible.
- irreformably — in an irreformable manner
- jaculiferous — having dartlike spines.
- jeffersonian — pertaining to or advocating the political principles and doctrines of Thomas Jefferson, especially those stressing minimum control by the central government, the inalienable rights of the individual, and the superiority of an agrarian economy and rural society.
- jeffersonite — (mineralogy) A variety of pyroxene of olive-green color passing into brown. It contains zinc.
- juiz de fora — a city in SE Brazil, N of Rio de Janeiro.
- king-of-arms — a title of certain of the principal heralds of England and certain other kingdoms empowered by their sovereigns to grant armorial bearings.
- korsakoffian — relating to or suffering from Korsakoff's psychosis
- lachrymiform — Shaped like a teardrop.
- laminar flow — the flow of a viscous fluid in which particles of the fluid move in parallel layers, each of which has a constant velocity but is in motion relative to its neighboring layers.
- laticiferous — bearing or containing latex.
- leapfrogging — Present participle of leapfrog.
- leif ericson — Leif [leef;; Icelandic leyv] /lif;; Icelandic leɪv/ (Show IPA), flourished a.d. c1000, Norse mariner: according to Icelandic saga, discoverer of Vinland (son of Eric the Red).
- life history — the series of living phenomena exhibited by an organism in the course of its development from inception to death.
- life support — equipment to sustain a patient's life
- life-support — of or relating to equipment or measures that sustain or artificially substitute for essential body functions, as breathing or disposal of body wastes: Without life-support equipment, the patient might die.
- ligulifloral — having strap-shaped flowers
- line of fire — the straight horizontal line from the muzzle of a weapon in the direction of the axis of the bore, just prior to firing.
- line officer — a military or naval officer serving with combatant units or warships, as distinguished from a staff officer, supply officer, etc.
- live-forever — a widely cultivated succulent plant, Sedum telephium, of the stonecrop family, having fleshy, coarsely toothed leaves and flat clusters of purplish flowers.
- living proof — sb whose existence is evidence of sth
- loan officer — a bank employee who helps would-be borrowers get a loan
- lofting iron — a club whose head has a sloped face, for lofting the ball.
- logical form — the syntactic structure that may be shared by different expressions as abstracted from their content and articulated by the logical constants of a particular logical system, esp the structure of an argument by virtue of which it can be shown to be formally valid. Thus John is tall and thin, so John is tall has the same logical form as London is large and dirty, so London is large, namely P & Q, so P
- loosestrifes — Plural form of loosestrife.
- loriciferans — Plural form of loriciferan.
- lovecraftian — referring to or reminiscent of the work of the American fantasy and horror fiction author H.P. Lovecraft (1870–1937)
- lug foresail — a gaff foresail having no boom or sometimes a partial boom.
- lumbriciform — resembling a lumbricus; wormlike
- luminiferous — producing light: the luminiferous properties of a gas.
- macrofossils — Plural form of macrofossil.
- malformation — faulty or anomalous formation or structure, especially in a living body: malformation of the teeth.
- microfibrils — Plural form of microfibril.
- microfibrous — Composed of microscopic fibres.
- microfilaria — the embryonic larva of the nematode parasite Filaria or of related genera, especially of those species that cause heartworm in dogs and elephantiasis in humans.
- microfilming — Present participle of microfilm.
- microfinance — (finance) Finance that is provided to unemployed or low-income people or groups.
- microfluidic — Of, pertaining to, or using microfluidics.
- microforceps — (surgery) A very small forceps.
- microfossils — a fossil so small that it can be studied and identified only with a microscope.
- midafternoon — the part of the afternoon centering approximately on three o'clock; the period approximately halfway between noon and sunset.
- mifepristone — an antigestational drug, C 29 H 35 NO 2 , that prevents a fertilized egg from attaching to the uterine wall by blocking the action of progesterone.
- misconfigure — Configure (a system or part of it) incorrectly.
- misformation — the act or process of forming or the state of being formed: the formation of ice.
- misfortunate — Having suffered misfortune; pitiable.
- misinforming — Present participle of misinform.