13-letter words containing d, f, l
- sulfanilamide — a white, crystalline amide of sulfanilic acid, C 6 H 8 N 2 O 2 S, formerly used in the treatment of bacterial infections: replaced by its derivatives and by antibiotics.
- sulfapyridine — a sulfanilamide derivative, C 1 1 H 1 1 N 3 O 2 S, formerly used for infections caused by pneumococci, now used primarily for a particular dermatitis.
- sulfonic acid — any of a large group of organic compounds of the structure RSO 2 OH, which are strong acids that give neutral sodium salts: used in the synthesis of phenols, dyes, and other substances.
- sulfuric acid — a clear, colorless to brownish, dense, oily, corrosive, water-miscible liquid, H 2 SO 4 , usually produced from sulfur dioxide: used chiefly in the manufacture of fertilizers, chemicals, explosives, and dyestuffs and in petroleum refining.
- superfluidity — a fluid that exhibits frictionless flow, very high heat conductivity, and other unusual physical properties, helium below 2.186 K being the only known example.
- tetrafluoride — a fluoride containing four fluorine atoms.
- the afflicted — afflicted people considered collectively
- the backfield — the quarterback and running backs in a team
- the good life — If you say that someone is living the good life, you mean that they are living in comfort and luxury with few problems or worries.
- threefoldness — the state or condition of being threefold
- to hold forth — If you hold forth on a subject, you speak confidently and for a long time about it, especially to a group of people.
- trading floor — stock exchange: room where trading is done
- twelfth grade — (in the US) the final year of secondary school after which students usually graduate at age 17 or 18
- ultrararefied — extremely rarefied
- unblindfolded — not blindfolded
- uncamouflaged — the act, means, or result of obscuring things to deceive an enemy, as by painting or screening objects so that they are lost to view in the background, or by making up objects that from a distance have the appearance of fortifications, guns, roads, etc.: Was camouflage used extensively on fighter aircraft during World War I?
- underinflated — lacking sufficient air pressure
- undutifulness — the quality of being undutiful
- unelectrified — not powered by electricity
- unexemplified — not exemplified; not clarified by example
- unfacilitated — to make easier or less difficult; help forward (an action, a process, etc.): Careful planning facilitates any kind of work.
- unqualifiedly — not qualified; not fit; lacking requisite qualifications: unqualified for the job.
- unrefined oil — oil that hasn't been refined or processed
- unsteadfastly — in an unsteadfast manner
- user-friendly — easy to use, operate, understand, etc.: the most user-friendly personal computer now on the market.
- waldorf salad — a salad of celery, diced apples, nuts, and mayonnaise.
- wall of death — (at a fairground) a giant cylinder round the inside walls of which a motorcyclist rides
- waterflooding — (in oil, gas, or petroleum production) the practice of injecting water to maintain pressure in a reservoir and to drive the oil, etc towards the production wells
- well-affected — favourably disposed (towards); steadfast or loyal
- well-defended — to ward off attack from; guard against assault or injury (usually followed by from or against): The sentry defended the gate against sudden attack.
- well-favoured — of pleasing appearance; good-looking; pretty or handsome.
- well-financed — the management of revenues; the conduct or transaction of money matters generally, especially those affecting the public, as in the fields of banking and investment.
- well-finished — ended or completed.
- well-followed — to come after in sequence, order of time, etc.: The speech follows the dinner.
- well-informed — having extensive knowledge, as in one particular subject or in a variety of subjects.
- west flanders — a province in W Belgium. 1249 sq. mi. (3235 sq. km). Capital: Bruges.
- wildlife park — animal reserve
- wolffian body — the mesonephros.
- wolffian duct — a duct, draining the mesonephros of the embryo, that becomes the vas deferens in males and vestigial in females.
- wonderfulness — excellent; great; marvelous: We all had a wonderful weekend.
- words fail me — I am too happy, sad, amazed, etc, to express my thoughts
- working fluid — a liquid or gaseous working substance.