13-letter words containing a, d, f, u
- sugar of lead — lead acetate.
- sulfadimidine — an antibacterial sulfa drug used in human and veterinary medicine. It is effective against chlamydia, toxoplasma, and cocidia
- 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.
- surf and turf — surf and turf.
- tetrafluoride — a fluoride containing four fluorine atoms.
- trade figures — a record of how much a country has paid for goods which it has bought from other countries, compared with how much it has been paid for goods which it has sold to other countries
- ultrararefied — extremely rarefied
- 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?
- under pain of — physical suffering or distress, as due to injury, illness, etc.
- underfinanced — Underfinanced means the same as underfunded.
- underinflated — lacking sufficient air pressure
- understaffing — the condition of being understaffed or of lacking a number of employees
- unfacilitated — to make easier or less difficult; help forward (an action, a process, etc.): Careful planning facilitates any kind of work.
- unfenestrated — having windows; windowed; characterized by windows.
- unqualifiedly — not qualified; not fit; lacking requisite qualifications: unqualified for the job.
- unsteadfastly — in an unsteadfast manner
- unthriftyhead — thriftlessness
- untransferred — to convey or remove from one place, person, etc., to another: He transferred the package from one hand to the other.
- untransformed — not transformed; not having been transformed
- ward of court — a person, esp a minor or one legally incapable of managing his own affairs, placed under the control or protection of a guardian or of a court
- well-favoured — of pleasing appearance; good-looking; pretty or handsome.
- wolffian duct — a duct, draining the mesonephros of the embryo, that becomes the vas deferens in males and vestigial in females.