12-letter words containing o, n, e, f
- fitness room — a room with gym equipment in it
- five nations — (formerly) a confederacy of North American Indian peoples living mainly in and around present-day New York state, consisting of the Cayugas, Mohawks, Oneidas, Onondagas, and Senecas
- fixed-income — gaining or yielding a more or less uniform rate of income.
- flabellation — the act of fanning a wound to keep it cool
- flagellation — the act or process of flagellating.
- flame carbon — a carbon electrode containing metallic salts that colour the arc in a flame-arc light
- flannelboard — a flannel-covered surface to which other flannel pieces, as letters of the alphabet, numbers, etc., adhere merely by contact, used mainly in schools as a visual aid.
- flannelmouth — a person whose speech is thick, slow, or halting.
- flavoprotein — an enzyme, containing riboflavin and linked chemically with a protein, active in the oxidation of foods in animal cells.
- fleet prison — (formerly) a London prison, esp used for holding debtors
- flemish bond — a brickwork bond having alternate stretchers and headers in each course, each header being centered above and below a stretcher.
- flexuousness — The state or condition of being flexuous.
- flindermouse — (obsolete) A bat (the mammal).
- floor-length — extending to the floor: a floor-length skirt.
- floor-manage — to act as or in the manner of a floor manager.
- flourishment — The act or state of flourishing.
- flow pattern — The flow pattern is the way in which fluids move through a reactor.
- flowing well — A flowing well is a well which can produce oil or gas without the use of a mechanical pump.
- fluoranthene — (organic compound) A polycyclic aromatic hydrocarbon consisting of a benzene ring attached to each of the rings of a naphthalene molecule; it is carcinogenic, and is a product of incomplete combustion.
- fluoresceine — Alternative spelling of fluorescein.
- fluorescence — the emission of radiation, especially of visible light, by a substance during exposure to external radiation, as light or x-rays. Compare phosphorescence (def 1).
- fluorescents — Plural form of fluorescent.
- flusteration — (colloquial, dated) The act of flustering, or the state of being flustered.
- fluviomarine — of or formed by the combined action of river and sea.
- flying mouse — pygmy glider.
- focal length — the distance from a focal point of a lens or mirror to the corresponding principal plane. Symbol: f.
- foetoprotein — Alternative spelling of fetoprotein.
- folding rule — a rule composed of light strips of wood joined by rivets so as to be foldable, all the opening and closing parts being in parallel planes.
- folding seat — a seat that can be folded down
- fomentations — Plural form of fomentation.
- food counter — a counter in a shop, bar, cafeteria, etc where food is sold or served
- food science — the study of the nature of foods and the changes that occur in them naturally and as a result of handling and processing.
- foodlessness — Absence of food.
- footlessness — the state of being footless
- footplateman — a member of a locomotive crew who stands on the footplate to operate the controls
- footsoreness — The characteristic of being footsore.
- for a change — contrary to the norm
- for a season — for a while
- for a wonder — to think or speculate curiously: to wonder about the origin of the solar system.
- for instance — a case or occurrence of anything: fresh instances of oppression.
- for-instance — an instance or example: Give me a for-instance of what you mean.
- foraminifera — any chiefly marine protozoan of the sarcodinian order Foraminifera, typically having a linear, spiral, or concentric shell perforated by small holes or pores through which pseudopodia extend.
- forbearances — Plural form of forbearance.
- forbearingly — In a forbearing manner.
- forced entry — entry into a building by force, eg by forcing a lock
- forcefulness — full of force; powerful; vigorous; effective: a forceful plea for peace.
- forcibleness — The quality of being forcible.
- fore and aft — situated at or toward the front, as compared with something else.
- fore-and-aft — located along or parallel to a line from the stem to the stern.
- foreadmonish — (rare, transitive) To admonish beforehand, or before the act or event.