12-letter words containing f, r, i, o
- dancing frog — (programming, humour) A bug or glitch that only occurs for a particular user; never when the user tries to show it to anyone else. The term is derived from a Warner Brothers cartoon in which a man discovers a frog which can sing and dance; he believes this will make his fortune but the frog never performs in front of anyone else.
- de profundis — out of the depths of misery or dejection
- deck officer — a ship's officer who is part of the deck crew
- deflagration — Deflagration is an explosion in which the speed of burning is lower than the speed of sound in the surroundings.
- deflationary — A deflationary economic policy or measure is one that is intended to or likely to cause deflation.
- deformalized — Simple past tense and past participle of deformalize.
- deformations — Plural form of deformation.
- defraudation — (obsolete) The act of defrauding; a taking by fraud.
- derived form — derivative (def 4).
- derived-form — something that has been derived.
- destined for — headed for; bound for
- dibenzofuran — an organic compound (C12H8O) composed of two benzene rings fused to a central furan ring
- discomfiture — Archaic. defeat in battle; rout.
- discomforted — an absence of comfort or ease; uneasiness, hardship, or mild pain.
- discomforter — One who causes discomfort.
- disconfirmed — Simple past tense and past participle of disconfirm.
- doloriferous — causing pain or sadness, dolorific
- dorsiflexion — flexion toward the back.
- double drift — a method of calculating wind direction and velocity by observing the direction of drift of an aircraft on two or more headings.
- double first — a first in two subjects.
- drift anchor — a sea anchor or drag.
- drop forging — a product made by drop-forging
- duty officer — In the police or armed forces, a duty officer is an officer who is on duty at a particular time.
- eco-friendly — environmentally safe
- effiguration — a detailed and elaborate description of something
- efflorescing — Present participle of effloresce.
- effronteries — Plural form of effrontery.
- effusiometer — an apparatus for determining rates of effusion of gases, usually used for measuring molecular weights
- eiffel tower — landmark in Paris
- elfin forest — the zone of stunted wind-blown trees growing at high altitudes just above the timberline on tropical mountains
- equisetiform — having the form of equisetum
- exfiltration — (military) The process of exiting an area (usually behind enemy lines or in enemy territory).
- fabrications — Plural form of fabrication.
- facilitators — Plural form of facilitator.
- facilitatory — That serves to facilitate.
- factorisable — Alternative spelling of factorizable.
- factorizable — (mathematics, of an integer or polynomial etc) Able to be factorized.
- factory ship — a whaling ship equipped to process killed whales and to transport the oil and by-products.
- fair housing — the sale and rental of private housing free of discriminatory practices or policies.
- falling door — flap door (def 1).
- family court — court of domestic relations.
- faradization — to stimulate or treat (muscles or nerves) with induced alternating electric current (distinguished from galvanize).
- fare-dodging — the practice of trying to travel on public transport without paying the fare
- fascia-board — a band or fillet, as for binding the hair.
- fast-growing — growing very quickly
- favorability — The quality or degree of being viewed favorably.
- favorite son — (at a national political convention) a candidate nominated for office by delegates from his or her own state.
- fenestration — the design and disposition of windows and other exterior openings of a building.
- fermentation — the act or process of fermenting.
- ferric oxide — a dark-red, crystalline, water-insoluble solid, Fe 2 O 3 , occurring naturally, as hematite and rust, or synthesized: used chiefly as a pigment, as a mordant, as a coating for magnetic recording tape, and in the manufacture of polishing compounds.