12-letter words containing a, d, r, i
- field ration — ration issued and authorized for troops in the field.
- fifth-grader — a student in the fifth grade of the American education system
- fig marigold — any of various plants of the genus Mesembryanthemum, having showy flowers of white, yellow, or pink.
- figured bass — a bass part in which the notes have numbers under them indicating the chords to be played.
- fine-grained — being of fine grain or texture, as certain types of wood, leather, etc.
- fingerboards — Plural form of fingerboard.
- fire brigade — a group of firefighters, especially as formed temporarily or called upon to assist a fire department in an emergency.
- fire hydrant — a hydrant for use in extinguishing fires.
- fire-damaged — damaged by fire or in a fire
- firing squad — a military detachment assigned to execute a condemned person by shooting.
- first reader — the elected official of a church or society who conducts the services and meetings and reads from the writings of Mary Baker Eddy and the Scriptures.
- first-grader — a child in the first grade
- fixed charge — an expense that cannot be modified.
- flash drying — Flash drying is a stage in a process to make something bigger, in which a paste-like feed is broken up and dried at the same time.
- flat-grained — (of sawed lumber) having the annual rings at an angle of less than 45° with the broader surfaces.
- flinders bar — a bar of soft iron, mounted vertically beneath a compass to compensate for vertical magnetic currents.
- float bridge — a bridge, as from a pier to a boat, floating at one end and hinged at the other to permit loading and unloading at any level of water.
- florida keys — chain of small islands extending southwest from the S tip of Fla.
- florida moss — Spanish moss.
- florida room — a sunroom.
- fluidextract — a liquid preparation, containing alcohol as a solvent or as a preservative, that contains in each cubic centimeter the medicinal activity of one gram of the crude drug in powdered form.
- fluoridating — Present participle of fluoridate.
- fluoridation — the addition of fluorides to the public water supply to reduce the incidence of tooth decay.
- food pyramid — successive levels of predation in a food chain represented schematically as a pyramid because upper levels normally consist of decreasing numbers of larger predators.
- foolhardiest — Superlative form of foolhardy.
- footdragging — the act or practice of acting with deliberate slowness
- foreadmonish — (rare, transitive) To admonish beforehand, or before the act or event.
- foreordained — to ordain or appoint beforehand.
- foreordinate — foreordain.
- forked chain — branched chain.
- formularized — Simple past tense and past participle of formularize.
- fort madison — a city in SE Iowa, on the Mississippi.
- fortified pa — a Māori hilltop dwelling with trenches and palisades for defensive occupation
- forward bias — a voltage applied to a circuit or device, esp a semiconductor device, in the direction that produces the larger current
- forward dive — a dive from a position facing the water in which the diver jumps up from the springboard, rotating the body forward, and enters the water either headfirst or feetfirst.
- forward line — the soldiers at the forward most position in an army force
- foundationer — a person supported by funds from a foundation, or serving as a member of a foundation
- four-in-hand — a long necktie to be tied in a slipknot with the ends left hanging.
- fractionated — Simple past tense and past participle of fractionate.
- fragmentized — fragmented.
- franked mail — official mail sent by members of Congress, the vice president, and other authorized officials. Compare frank1 (defs 6–9).
- free radical — an atom or molecule that bears an unpaired electron and is extremely reactive, capable of engaging in rapid chain reactions that destabilize other molecules and generate many more free radicals: in the body, deactivated by antioxidants, uric acid, and certain enzyme activities.
- freestanding — (of sculpture or architectural elements) unattached to a supporting unit or background; standing alone.
- freight yard — a place on a rail network where freight trains are made up or broken up
- french drain — a drainage trench filled to ground level with fragments of brick, rock, etc.
- french india — the five small former French territories in India, including Chandernagor, Karikal, Pondicherry, and Yanaon on the E coast, and Mahé on the W coast.
- fried potato — Fried potatoes are pieces of potato cooked in oil or fat.
- frigate bird — any of several predacious seabirds of the genus Fregata, having fully webbed feet.
- frigatebirds — Plural form of frigatebird.
- fumaric acid — a colorless, odorless, crystalline, slightly water-soluble solid, C 4 H 4 O 4 , isomeric with maleic acid, essential to cellular respiration in most eukaryotic organisms: used in the making of synthetic resins and as a replacement for tartaric acid in beverages and baking powders.