20-letter words containing a, t, d, g
- determinate cleavage — cell division in a fertilized or unfertilized egg resulting in daughter cells that are no longer able to produce a complete embryo by themselves
- developing-out paper — a sensitized printing paper requiring development in order to bring out the image. Abbreviation: D.O.P.
- development planning — the planning of the development of an area of land
- dialectical theology — a form of neoorthodox theology emphasizing the infinite tensions, paradoxes, and basic ambiguities inherent in Christian existence, and holding, against rationalism, that God is unknowable to humans except through divine grace and revelation.
- diamond in the rough — a diamond in its natural state
- dictionary catalogue — a catalogue of the authors, titles, and subjects of books in one alphabetical sequence
- differential housing — the casing that houses the differential of a motor vehicle
- differential pricing — a situation in which different prices are charged for the same product or service
- digital data service — (communications) (DDS) The class of service offered by telecommunications companies for transmitting digital data as opposed to voice.
- digital lempel ziv 1 — (algorithm) (DLZ1) A Lempel-Ziv compression algorithm which maps variable length input strings to variable length output symbols. During compression, the algorithm builds a dictionary of strings which is accessed by means of a hash table. Compression occurs when input data matches a string in the table and is replaced with the output symbol. DLZ1 is used on Digital Linear Tape.
- digital media player — Digital Technology. a portable electronic device or a software program that plays and stores digital audio or video files in various formats.
- digital service unit — data service unit
- directional drilling — a method of drilling for oil in which the well is not drilled vertically, as when a number of wells are to be drilled from a single platform to reach different areas of an oil field
- directory user agent — (DUA) The software that accesses the X.500 Directory Service on behalf of the directory user. The directory user may be a person or another software element.
- displacement tonnage — the number of long tons of water displaced by a vessel, light or load displacement being specified.
- disruptive discharge — the sudden, large increase in current through an insulating medium resulting from complete failure of the medium under electrostatic stress.
- domestic heating oil — a liquid petroleum product used to fuel residential building furnaces or boilers
- dynamic data linking — Dynamic Data Exchange
- electrocardiographic — Of or pertaining to an electrocardiogram (ECG) or electrocardiograph.
- estrela mountain dog — a sturdy well-built dog of a Portuguese breed with a long thick coat and a thick tuft of hair round the neck, often used as a guard dog
- every bit as good as — You say that one thing is every bit as good, interesting, or important as another to emphasize that the first thing is just as good, interesting, or important as the second.
- fair-trade agreement — an agreement or contract between a manufacturer and a retailer to sell a branded or trademarked product at no less than a specific price: legally prohibited after 1975.
- fight tooth and nail — fight fiercely
- fission-track dating — the dating of samples of minerals by comparing the tracks in them by fission fragments of the uranium nuclei they contain, before and after irradiation by neutrons
- fixed-rate financing — a loan system in which the amount paid back does not fluctuate according to interest rated
- flight data recorder — a recording device that records relevant data during an aircraft's flight
- fort george g. meade — a military reservation in central Maryland, SW of Baltimore.
- fulminating compound — a fulminate.
- gastroduodenostomies — Plural form of gastroduodenostomy.
- general headquarters — the headquarters of the commanding officer of a large military force. Abbreviation: GHQ, G.H.Q.
- genetically modified — biologically altered
- get ahold of oneself — If you get ahold of yourself, you force yourself to become calm and sensible after a shock or in a difficult situation.
- get away with murder — Law. the killing of another human being under conditions specifically covered in law. In the U.S., special statutory definitions include murder committed with malice aforethought, characterized by deliberation or premeditation or occurring during the commission of another serious crime, as robbery or arson (first-degree murder) and murder by intent but without deliberation or premeditation (second-degree murder)
- girdle-tailed lizard — any African lizard of the family Cordylidae, having a spiny tail used in defense.
- give a wide berth to — to keep clear of; avoid
- go from bad to worse — worsen
- go to someone's head — to confuse, excite, or intoxicate someone
- grade school teacher — a teacher in a grade school
- grand right and left — a figure called in square dancing in which partners face each other, forming a small circle, and then advance around the circle by extending alternating right and left hands to pull past each new person until they reach their partners again.
- grand unified theory — a possible future quantum field theory that would encompass both the electroweak theory and quantum chromodynamics. Abbreviation: GUT.
- gravitational radius — Schwarzschild radius.
- great dividing range — a mountain range extending along the E coast of Australia: vast watershed region. 100 to 200 miles (160–320 km) wide.
- great northern diver — a large northern bird, Gavia immer, with a black-and-white chequered back and a black head and neck in summer: family Gaviidae (divers)
- great-great-grandson — the grandson of a grandchild
- greatest lower bound — a lower bound that is greater than or equal to all the lower bounds of a given set: 1 is the greatest lower bound of the set consisting of 1, 2, 3. Abbreviation: glb.
- guided visualization — a relaxation technique in which words, sounds, etc., are used to evoke positive mental images, feelings, and thoughts.
- guillaume de machaut — Guillaume de [French gee-yohm duh] /French giˈyoʊm də/ (Show IPA), Guillaume de Machaut.
- happy hunting ground — the North American Indian heaven, conceived of as a paradise of hunting and feasting for warriors and hunters.
- hard gelatin capsule — A hard gelatin capsule is a type of capsule that is usually used to contain medicine in the form of dry powder or very small pellets.
- helmeted guinea fowl — the common guinea fowl in its wild state.