12-letter words containing f, e, r, o, l
- informidable — (obsolete) Not formidable; not to be feared or dreaded.
- interfemoral — situated between the thighs
- interfoliate — to interleave
- interfrontal — situated between the frontal bones
- 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.
- labour force — The labour force consists of all the people who are able to work in a country or area, or all the people who work for a particular company.
- lamella roof — a vaulted roof composed of lamellae.
- large-format — of or relating to a camera with an image area of 5 inches by 4 inches or more
- laticiferous — bearing or containing latex.
- law of areas — any one of three laws governing planetary motion: each planet revolves in an ellipse, with the sun at one focus; the line connecting a planet to the sun sweeps out equal areas in equal periods of time (law of areas) or the square of the period of revolution of each planet is proportional to the cube of the semimajor axis of the planet's orbit (harmonic law)
- leaf through — one of the expanded, usually green organs borne by the stem of a plant.
- leapfroggers — Plural form of leapfrogger.
- 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).
- leopard frog — a common North American green frog, Rana pipiens, having white-edged, dark oval spots on its back.
- 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.
- 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.
- loan officer — a bank employee who helps would-be borrowers get a loan
- looked-after — (of children) brought up by the state in institutions because their parents are dead or not able to care for them properly
- 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)
- lower fungus — any of various fungi that do not produce well-organized fruiting bodies and primarily reproduce asexually, as the chytrids.
- lug foresail — a gaff foresail having no boom or sometimes a partial boom.
- luminiferous — producing light: the luminiferous properties of a gas.
- monofluoride — (chemistry) any fluoride containing a single fluorine atom in each molecule.
- mournfulness — The property of being mournful.
- muffle color — Ceramics. a color fired onto an object in a muffle kiln.
- neurofibrils — Plural form of neurofibril.
- neutron flux — the rate of flow of neutrons through a specified area
- nonflowering — (biology) Of a plant, not flowering; reproducing by means other than pollination from flowers.
- nonreflexive — (of a relation) neither reflexive nor irreflexive; holding between some members of its domain and themselves, and failing to hold between others
- norfullerene — (chemistry) Any of various compounds formally derived from a fullerene by the removal of one or more carbon atoms, and the optional addition of several hydrogen atoms.
- off-islander — a temporary or seasonal resident of an island; island visitor or tourist.
- officeholder — a person filling a governmental position; public official.
- oil refinery — plant where crude oil is processed
- old favorite — If you refer to something as an old favorite, you mean that it has been in existence for a long time and everyone knows it or likes it.
- olefin fiber — any of a group of synthetic textile fibers, as Herculon, formed from long-chain polymers no less than 85 percent ethylene, propylene, or other olefin units.
- olfactometer — a device for estimating the keenness of the sense of smell.
- olfactometry — The study and measurement of smells.
- over-helpful — giving or rendering aid or assistance; of service: Your comments were very helpful.
- over-inflate — to distend; swell or puff out; dilate: The king cobra inflates its hood.