13-letter words that end in de
- thioacetamide — a colorless, crystalline, water-soluble solid, C 2 H 5 NS, used chiefly in analytical chemistry as a source of hydrogen sulfide.
- thiocarbamide — thiourea.
- titanic oxide — a white, water-insoluble powder, TiO 2 , used chiefly in white pigments, plastics, ceramics, and for delustering synthetic fibers.
- tout le monde — all the world; everyone
- transactinide — any element having an atomic number higher than 103, the last of the actinide series. These superheavy, radioactive elements are extremely short-lived, and can only be created in the laboratory.
- trinucleotide — three linked nucleotides; triplet.
- trisaccharide — a carbohydrate composed of three monosaccharide units, and hydrolyzable to a monosaccharide or a mixture of monosaccharides.
- turbine blade — any of a number of bladelike vanes assembled around the periphery of a turbine rotor to guide the steam or gas flow
- turn the tide — the periodic rise and fall of the waters of the ocean and its inlets, produced by the attraction of the moon and sun, and occurring about every 12 hours.
- twelfth grade — (in the US) the final year of secondary school after which students usually graduate at age 17 or 18
- uranium oxide — any of the compounds of uranium and oxygen, as UO 2 , UO 3 , U 4 O 9 , or U 3 O 8 .
- weapons-grade — Weapons-grade substances such as uranium or plutonium are of a quality which makes them suitable for use in the manufacture of nuclear weapons.
- yttrium oxide — a white, water-insoluble powder, Y 2 O 3 , used chiefly in incandescent gas and acetylene mantles.
- zero altitude — the height at which the atmospheric pressure is 610.5Pa
- zinc chloride — a white, crystalline, deliquescent, water-soluble, poisonous solid, ZnCl 2 , used chiefly as a wood preservative, as a disinfectant and antiseptic, and in the manufacture of vulcanized fiber, parchment paper, and soldering fluxes.