18-letter words containing a, h, e

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).
every now and then — from time to time; occasionally
exchange programme — an arrangement in which people from different countries visit each other's country, perhaps to strengthen links between them or to improve foreign language skills
executive chairman — the most senior internal position within a company, combining the duties of chairman and chief executive
exhaustive testing — (programming) Executing a program with all possible combinations of inputs or values for program variables.
fall to the ground — (of a plan, theory, etc) to be rendered invalid, esp because of lack of necessary information
family-tree theory — a theory that describes language change in terms of genetically related languages developing in successive splits from a common parent language, such as Indo-European, as depicted by a family tree diagram.
farm the long acre — to graze cows on the verge of a road
farmer in the dell — a game, accompanied by a song with several verses, in which one person, designated as the farmer, occupies the center of a circle of persons and is joined in the circle by other players designated as wife, child, nurse, cat, rat, and cheese, these then leaving the circle in order except for the one designated as cheese, who is left standing alone in the circle at the end.
feast of orthodoxy — a solemn festival held on the first Sunday of Lent (Orthodoxy Sunday) commemorating the restoration of the use of icons in the church (a.d. 842) and the triumph over all heresies.
feather one's nest — one of the horny structures forming the principal covering of birds, consisting typically of a hard, tubular portion attached to the body and tapering into a thinner, stemlike portion bearing a series of slender, barbed processes that interlock to form a flat structure on each side.
feldenkrais method — a system of gentle movements that promote flexibility, coordination, and self-awareness
ferdinand schiller — Ferdinand Canning Scott [kan-ing] /ˈkæn ɪŋ/ (Show IPA), 1864–1937, English philosopher in the U.S.
fifth monarchy men — (during the Commonwealth in the 17th century) a militant sect of Puritans who identified the fifth monarchy with the millennial reign of Christ and who believed they should help to inaugurate that reign by force.
fight to the death — If you say that you will fight to the death for something, you are emphasizing that you will do anything to achieve or protect it, even if you suffer as a consequence.
fischer von erlach — Johann Bernhard [yaw-hahn bern-hahrt] /ˈyɔ hɑn ˈbɛrn hɑrt/ (Show IPA), 1656–1723, Austrian architect.
flame-of-the-woods — an Indian evergreen shrub, Ixora coccinea, of the madder family, having red, tubular flowers in dense clusters.
flash butt welding — a method of welding metal edge-to-edge with a powerful electric flash followed by the application of pressure.
fly in the face of — to move through the air using wings.
fly off the handle — a part of a thing made specifically to be grasped or held by the hand.
for heaven's sake! — a mild exclamation of surprise, annoyance, etc.
fourth commandment — “Remember the sabbath day, to keep it holy”: fourth of the Ten Commandments.
fracture toughness — The fracture toughness of a material is how likely it is to resist fracture.
free-range chicken — a chicken kept in natural nonintensive conditions
french west africa — a former French federation in W Africa, including Dahomey (now Benin), French Guinea, French Sudan (now Mali), Ivory Coast, Mauritania, Niger, Senegal, and Upper Volta (now Burkina Fasso).
fu manchu mustache — a mustache whose ends droop to the chin.
gas-discharge tube — any tube in which an electric discharge takes place through a gas
general anesthesia — induced unconsciousness
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.
get out of the way — move aside
get the upper hand — gain advantage
giant peacock moth — the largest European moth, an emperor, Saturnia pyri, reaching 15 cm (6 in.) in wingspan. It is mottled brown with a prominent ocellus on each wing and being night-flying can be mistaken for a bat
give one's hand on — the terminal, prehensile part of the upper limb in humans and other primates, consisting of the wrist, metacarpal area, fingers, and thumb.
give sb their head — If you give someone their head, you allow them to do what they want to do, without trying to advise or stop them.
give the game away — to reveal one's intentions or a secret
gladden sb's heart — If you say that something gladdens someone's heart, you mean that it makes them feel pleased and hopeful.
go back to the mat — to abandon urban civilization
go for the jugular — Anatomy. of or relating to the throat or neck. noting or pertaining to any of certain large veins of the neck, especially one (external jugular vein) collecting blood from the superficial parts of the head or one (internal jugular vein) collecting blood from within the skull.
go off half-cocked — (of a firearm) at the position of half cock.
go to the bathroom — use the toilet
go with the stream — to conform to the accepted standards
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.
grasshopper engine — a steam engine having a piston attached to one end of a beam that is hinged to an upright at the other end, the connecting rod being suspended from near the center of the beam.
grease the palm of — to influence by giving money to; bribe
great white father — the president of the U.S.
greater manchester — a metropolitan county in central England, with the city of Manchester as its center. 498 sq. mi. (1290 sq. km).
greater pichiciego — an armadillo, Burmeisteria retusa, similar to, but larger than, a pichiciego

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