21-letter words containing h, e, d, r
- data parallel haskell — (language, parallel) Adds Parallel Objects with arbitrary Dimension (PODs) and POD comprehensions to Haskell.
- dataflow architecture — a means of arranging computer data processing in which operations are governed by the data present and the processing it requires rather than by a prewritten program that awaits data to be processed
- dead from the neck up — stupid or unintelligent
- death by misadventure — a possible verdict in a coroner's court, indicating that death was due to an accident not to a crimes or somebody's negligence
- decompression chamber — a chamber in which the pressure of air can be varied slowly for returning people from abnormal pressures to atmospheric pressure without inducing decompression sickness
- defender of the faith — the title conferred upon Henry VIII by Pope Leo X in 1521 in recognition of the King's pamphlet attacking Luther's doctrines and retained by subsequent monarchs of England
- dendrochronologically — By the use of, or with reference to dendrochronology.
- desire under the elms — a play (1924) by Eugene O'Neill.
- disestablishmentarian — a person who favors the separation of church and state, especially the withdrawal of special rights, status, and support granted an established church by a state; an advocate of disestablishing a state church.
- disruptive technology — A disruptive technology is a new technology, such as computers and the Internet, which has a rapid and major effect on technologies that existed before.
- divine right of kings — the doctrine that the right of rule derives directly from God, not from the consent of the people.
- do/did you hear (me)? — If you say 'Do you hear?' or 'Did you hear me?' to someone, you are telling them in an angry or forceful way to pay attention to what you are saying.
- double spanish burton — a tackle having one standing block and two running blocks, giving a mechanical advantage of five, neglecting friction.
- drop the handkerchief — a children's game in which all the players but one stand in a circle facing inward, while that one player stealthily drops a handkerchief behind a player in the circle who must pursue and attempt to catch the one who dropped the handkerchief before the latter reaches the vacated place.
- dutch reformed church — of or relating to a Protestant denomination (Dutch Reformed Church) founded by Dutch settlers in New York in 1628 and renamed the Reformed Church in America in 1867.
- 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
- embarras de richesses — a superfluous abundance of options, from which one finds it difficult to select
- 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
- every dog has his day — one's luck will come
- 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.
- flip someone the bird — give someone the finger (see phrase under finger)
- forward exchange rate — the exchange rate of a currency to be delivered at a later date
- 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
- friends with benefits — friends who have a casual sexual relationship with no expectation of commitment
- 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.
- gamma hydroxybutyrate — a substance that occurs naturally in the brain, used medically as a sedative but also as a recreational drug and alleged aphrodisiac: known as 'liquid ecstasy' when mixed with alcohol
- gentleman of the road — a highwayman.
- get in under the wire — to accomplish something with little time to spare
- give a horse its head — to allow a horse to gallop by lengthening the reins
- 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.
- give someone the bird — to tell someone rudely to depart; scoff at; hiss
- 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.
- greek orthodox church — the branch of the Orthodox Church constituting the national church of Greece.
- 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 heard sth before — If you say that you have heard something before, you mean that you are not interested in it, or do not believe it, or are not surprised about it, because you already know about it or have experienced it.
- 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 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.
- hazard warning device — an appliance fitted to a motor vehicle that operates the hazard lights
- hierarchical database — (database) A kind of database management system that links records together like a family tree such that each record type has only one owner, e.g. an order is owned by only one customer. Hierarchical structures were widely used in the first mainframe database management systems. However, due to their restrictions, they often cannot be used to relate structures that exist in the real world.
- higher-order function — (HOF) A function that can take one or more functions as argument and/or return a function as its value. E.g. map in (map f l) which returns the list of results of applying function f to each of the elements of list l. See also curried function.
- hildegard (of bingen) — Saint(1098-1179); Ger. nun, composer, & mystic: her day is Sept. 17
- hindu-arabic numerals — Arabic numeral.