21-letter words containing d, e, r, f, l, y
- aleksandra fyodorovna — Alexandra Feodorovna.
- bichloride of mercury — mercuric chloride
- chloroformyl chloride — phosgene.
- comfortably-furnished — containing comfortable furniture
- differential analyzer — an analog computer designed for solving certain differential equations.
- differential geometry — the branch of mathematics that deals with the application of the principles of differential and integral calculus to the study of curves and surfaces.
- differential topology — the branch of topology that studies the properties of differentiable manifolds that remain invariant under diffeomorphisms.
- dumfries and galloway — a region in S Scotland. 2460 sq. mi. (6371 sq. km).
- electric flux density — Electric flux density is electric flux passing through a unit area perpendicular to the direction of the flux.
- faculty board meeting — a meeting of the governing body of a faculty
- false memory syndrome — a psychological condition in which a person believes that he or she remembers events that have not actually occurred.
- false-memory syndrome — a psychological condition in which a person believes that he or she remembers events that have not actually occurred.
- four-footed butterfly — any of several butterflies of the family Nymphalidae, including the fritillaries, mourning cloaks, anglewings, and commas, characterized by reduced, nonfunctional forelegs.
- fundamental frequency — the lowest frequency at which a medium will freely oscillate.
- lady windermere's fan — a comedy (1892) by Oscar Wilde.
- lafayette, marquis de — Marie Joseph Paul Yves Roch Gilbert du Motier [ma-ree zhaw-zef pawl eev rawk zheel-ber dy maw-tyey] /maˈri ʒɔˈzɛf pɔl iv rɔk ʒilˈbɛr dü mɔˈtyeɪ/ (Show IPA), Marquis de. Also, La Fayette. 1757–1834, French soldier, statesman, and liberal leader, who served in the American Revolutionary Army as aide-de-camp to General Washington, and took a leading part in the French revolutions of 1789 and 1830.
- law of thermodynamics — any of three principles variously stated in equivalent forms, being the principle that the change of energy of a thermodynamic system is equal to the heat transferred minus the work done (first law of thermodynamics) the principle that no cyclic process is possible in which heat is absorbed from a reservoir at a single temperature and converted completely into mechanical work (second law of thermodynamics) and the principle that it is impossible to reduce the temperature of a system to absolute zero in a finite number of operations (third law of thermodynamics)
- like a blue-arsed fly — in a state of frenzied activity
- peroxydisulfuric acid — persulfuric acid (def 2).
- place of safety order — (in Britain) under the Children and Young Persons Act 1969, an order granted by a justice to a person or agency granting authority to detain a child or young person and take him or her to a place of safety for not more than 28 days, because of the child's actual or likely ill-treatment or neglect, etc
- to lay down your life — If someone lays down their life for another person, they die so that the other person can live.
- university of iceland — (body, education) The Home of Fjolnir.
- yellow-flowered gourd — the hard-shelled fruit of any of various plants, especially those of Lagenaria siceraria (white-flowered gourd or bottle gourd) whose dried shell is used for bowls and other utensils, and Cucurbita pepo (yellow-flowered gourd) used ornamentally. Compare gourd family.
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