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21-letter words containing a, n, h, r

  • easier said than done — difficult to do
  • eastern daylight time — a time zone applicable to many eastern areas of the United States during the summer months, being a daylight-saving variant of Eastern Standard Time
  • electroencephalograms — Plural form of electroencephalogram.
  • electroencephalograph — A machine used for electroencephalography.
  • electronystagmography — A diagnostic test to record involuntary movements of the eye caused by a condition known as nystagmus. It can also be used to diagnose the cause of vertigo, dizziness or balance dysfunction by testing the vestibular system.
  • enhanced oil recovery — any of several techniques that make it possible to recover more oil than can be obtained by natural pressure, such as the injection of fluid or gases into an oilfield to force more oil to the surface
  • enharmonic modulation — a change of key achieved by regarding a note in one key as an equivalent note in another. Thus E flat in the key of A flat could be regarded as D sharp in the key of B major
  • equiangular hyperbola — a hyperbola with transverse and conjugate axes equal to each other.
  • ethernet private line — (networking)   (EPL) A data service defined by the Metro Ethernet Forum, providing a point-to-point Ethernet connection between a pair of dedicated User-Network Interfaces (UNIs), with a high degree of transparency.
  • extended architecture — (storage)   (XA) A CD-ROM drive specification required by Green Book CD-ROM and White Book CD-ROM formats. Drives labelled "XA ready" may require a firmware upgrade.
  • first baron ashburtonAlexander, 1st Baron Ashburton, 1774–1848, British statesman.
  • first consonant shift — the consonant shift described by Grimm's law, which distinguishes Germanic languages from other Indo-European languages.
  • foreign exchange rate — the rate that specifies how much the currency of a nation is worth in terms of the currency of another nation
  • forensic anthropology — the branch of physical anthropology in which anthropological data, criteria, and techniques are used to determine the sex, age, genetic population, or parentage of skeletal or biological materials in questions of civil or criminal law.
  • forward exchange rate — the exchange rate of a currency to be delivered at a later date
  • frankfort on the main — a city in W central Germany, on the Main River.
  • frankfort on the oder — a city in NE Germany, on the Oder River.
  • french and indian war — the war in America in which France and its Indian allies opposed England 1754–60: ended by Treaty of Paris in 1763.
  • french fried potatoes — a more formal name for chips
  • frequent wash shampoo — a shampoo whose mildness allows it to be used frequently
  • from dan to beersheba — from one end of Israel to the other: Judg. 20:1
  • full faith and credit — the obligation under Article IV of the U.S. Constitution for each state to recognize the public acts, records, and judicial proceedings of every other state.
  • fuming sulphuric acid — a mixture of pyrosulphuric acid, H2S2O7, and other condensed acids, made by dissolving sulphur trioxide in concentrated sulphuric acid
  • gastrohepatic omentum — lesser omentum.
  • general of the armies — a special rank held by John J. Pershing, equivalent to general of the army.
  • gentleman of the road — a highwayman.
  • get in someone's hair — any of the numerous fine, usually cylindrical, keratinous filaments growing from the skin of humans and animals; a pilus.
  • get one's breath back — When you get your breath back after doing something energetic, you start breathing normally again.
  • give sb a green light — If someone in authority gives you a green light, they give you permission to do something.
  • give sb the runaround — If someone gives you the runaround, they deliberately do not give you all the information or help that you want, and send you to another person or place to get it.
  • go down the wrong way — (of food) to pass into the windpipe instead of the gullet
  • goldbach's conjecture — the conjecture that every even number greater than two is the sum of two prime numbers
  • got what one deserved — If you say that someone got what they deserved, you mean that they deserved the bad thing that happened to them, and you have no sympathy for them.
  • greenwich observatory — the national astronomical observatory of Great Britain, housed in a castle in E Sussex; formerly located at Greenwich.
  • ground-effect machine — ACV (def 2).
  • guaranteed scheduling — (algorithm)   A scheduling algorithm used in multitasking operating systems that guarantees fairness by monitoring the amount of CPU time spent by each user and allocating resources accordingly.
  • have a strong stomach — not to be prone to nausea
  • have one's cards read — If you have your cards read, you have your fortune told by someone who uses playing cards or tarot cards to tell you about yourself and predict your future.
  • have someone's number — a numeral or group of numerals.
  • have the inside track — If you say that someone has the inside track, you mean that they have an advantage, for example special knowledge about something.
  • hawaiian honeycreeper — any small to medium-sized finches of the subfamily Drepanidinae, native to the Hawaiian Islands and including many rare and extinct species.
  • hay-pauncefote treaty — an agreement (1901) between the U.S. and Great Britain giving the U.S. the sole right to build a canal across Central America connecting the Atlantic and Pacific.
  • hazard warning device — an appliance fitted to a motor vehicle that operates the hazard lights
  • heliocentric parallax — the apparent displacement of an observed object due to a change in the position of the observer.
  • help a person on with — to assist a person in the putting on of (clothes)
  • henry steele commagerHenry Steele, 1902–98, U.S. historian, author, and teacher.
  • hexachlorocyclohexane — (chemistry) A six-chlorine substituted cyclohexane, a polyhalogenated compound used in pesticides.
  • highest common factor — greatest common divisor. Abbreviation: H.C.F.
  • hildegard (of bingen) — Saint(1098-1179); Ger. nun, composer, & mystic: her day is Sept. 17
  • hindu-arabic numerals — Arabic numeral.
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