18-letter words containing c, h, e, l
- death by chocolate — a very rich type of chocolate dessert or cake
- death-valley curve — a curve on a graph showing how the capital of a new company plotted against time declines sharply as the venture capital is used up before income reaches predicted levels
- decachlorobiphenyl — (organic compound) The fully chlorinated polychlorinated biphenyl containing ten chlorine atoms.
- dendrochronologist — One who carries out dendrochronology.
- dichloracetic acid — a highly corrosive acid. Formula: C2H2Cl2O2
- dielectric heating — the heating of a nonconducting substance caused by dielectric loss when the material is placed in a variable electric field.
- digital switchover — the process of changing the method of transmitting television from analogue to digital format
- digital technology — the branch of scientific or engineering knowledge that deals with the creation and practical use of digital or computerized devices, methods, systems, etc.: advances in digital technology.
- dihydrotachysterol — a white, crystalline, water-insoluble sterol, C 28 H 46 O, derived from ergosterol: used chiefly in the treatment of hypoparathyroidism.
- diphosphoglycerate — an ester of phosphoric acid and glyceric acid that occurs in the blood and that promotes the release of hemoglobin-bound oxygen.
- diplomatic shuttle — a series of diplomatic visits to other states made by an official, such as an ambassador or envoy
- dodecadodecahedral — Having the form of a dodecadodecahedron.
- double achievement — a representation of the arms of a husband beside those of his wife such that a difference of rank between them is shown.
- dr. james h. clark — (person) The founder of Silicon Graphics, Inc. and co-founder of Netscape Communications Corporation.
- drinking chocolate — sweetened cocoa powder
- echeverria alvarez — Luis [lwees] /lwis/ (Show IPA), born 1922, Mexican political leader: president 1970–76.
- echoencephalograph — a device that employs reflected ultrasonic waves to examine the position of brain structures.
- eggshell porcelain — a type of very thin translucent porcelain originally made in China
- eighty-column mind — (abuse) The sort said to be possessed by persons for whom the transition from punched card to paper tape was traumatic (nobody has dared tell them about disks yet). It is said that these people, including (according to an old joke) the founder of IBM, will be buried "face down, 9-edge first" (the 9-edge being the bottom of the card). This directive is inscribed on IBM's 1402 and 1622 card readers and is referenced in a famous bit of doggerel called "The Last Bug", the climactic lines of which are as follows: He died at the console Of hunger and thirst. Next day he was buried, Face down, 9-edge first. The eighty-column mind is thought by most hackers to dominate IBM's customer base and its thinking. See fear and loathing, card walloper.
- electric discharge — electricity emitted
- electrocardiograph — A machine used for electrocardiography.
- electrophotography — Any of several methods of photocopying in which an image is created and then transferred between surfaces using static electricity.
- electrotherapeutic — Relating to electrotherapeutics.
- elementary teacher — a teacher in an elementary school
- emmenthal (cheese) — a hard, pale-yellow Swiss cheese with a mild flavor and large holes
- epicycloidal wheel — one of the planetary gears of an epicyclic train
- established church — a Church that is officially recognized as a national institution, esp the Church of England
- ethical investment — an investment in a company whose activities or products are not considered by the investor to be unethical
- ethnomusicological — Relating to or pertaining to ethnomusicology.
- ethnopsychological — Relating to ethnopsychology.
- euclid's algorithm — (algorithm) (Or "Euclidean Algorithm") An algorithm for finding the greatest common divisor (GCD) of two numbers. It relies on the identity gcd(a, b) = gcd(a-b, b) To find the GCD of two numbers by this algorithm, repeatedly replace the larger by subtracting the smaller from it until the two numbers are equal. E.g. 132, 168 -> 132, 36 -> 96, 36 -> 60, 36 -> 24, 36 -> 24, 12 -> 12, 12 so the GCD of 132 and 168 is 12. This algorithm requires only subtraction and comparison operations but can take a number of steps proportional to the difference between the initial numbers (e.g. gcd(1, 1001) will take 1000 steps).
- exclusive brethren — one of the two main divisions of the Plymouth Brethren, which, in contrast to the Open Brethren, restricts its members' contacts with those outside the sect
- farm the long acre — to graze cows on the verge of a road
- ferdinand schiller — Ferdinand Canning Scott [kan-ing] /ˈkæn ɪŋ/ (Show IPA), 1864–1937, English philosopher in the U.S.
- filchner ice shelf — an ice barrier in Antarctica, in the SE Weddell Sea, bordered on the W by Berkner Island.
- fischer von erlach — Johann Bernhard [yaw-hahn bern-hahrt] /ˈyɔ hɑn ˈbɛrn hɑrt/ (Show IPA), 1656–1723, Austrian architect.
- fly in the face of — to move through the air using wings.
- genetic algorithms — genetic algorithm
- gestalt psychology — (sometimes lowercase) the theory or doctrine that physiological or psychological phenomena do not occur through the summation of individual elements, as reflexes or sensations, but through gestalts functioning separately or interrelatedly.
- go off half-cocked — (of a firearm) at the position of half cock.
- goods and chattels — personal property
- grandfather clause — U.S. History. a clause in the constitutions of some Southern states after 1890 intended to permit whites to vote while disfranchising blacks: it exempted from new literacy and property qualifications for voting those men entitled to vote before 1867 and their lineal descendants.
- handkerchief table — corner table.
- handlebar mustache — A handlebar mustache is a long thick mustache with curled ends.
- handyman's special — fixer-upper.
- haulage contractor — a person or firm that transports goods by lorry
- have a screw loose — a metal fastener having a tapered shank with a helical thread, and topped with a slotted head, driven into wood or the like by rotating, especially by means of a screwdriver.
- health care worker — A health care worker is someone who works in a hospital or health centre.
- heart-lung machine — a device through which blood is shunted temporarily for oxygenation during surgery, while the heart or a lung is being repaired.
- hebdomadal council — the governing council or senate of Oxford University