18-letter words containing t, h, e, r, s, d
- a shot in the dark — If you describe something someone says or does as a shot in the dark or a stab in the dark, you mean they are guessing that what they say is correct or that what they do will be successful.
- absolute threshold — the minimum intensity of a stimulus at which it can just be perceived
- aerothermodynamics — the study of the exchange of heat between solids and gases, esp of the heating effect on aircraft flying through the air at very high speeds
- albrecht waldstein — Albrecht von [German ahl-brekht fuh n] /German ˈɑl brɛxt fən/ (Show IPA), Wallenstein, Albrecht Wenzel Eusebius von.
- aphrodite of melos — a Greek statue of Venus in marble, c200 b.c., found in 1820 on Melos and now in the Louvre, Paris.
- atmospheric window — wavelengths of the electromagnetic spectrum that can be transmitted through the earth's atmosphere. Atmospheric windows occur in the visible, infrared, and radio regions of the spectrum
- auditory phonetics — the branch of phonetics concerned with the perception of speech sounds by humans
- authorized version — the revised English translation of the Bible published in England in 1611 with the authorization of King James I
- avoirdupois weight — a British and American system of weights based on a pound of 16 ounces
- basket-handle arch — an arch having a symmetrical form drawn from an odd number of radii in excess of one, which increase in length from the springing toward the center.
- bird's-nest orchid — a brown parasitic Eurasian orchid, Neottia nidus-avis, whose thick fleshy roots resemble a bird's nest and contain a fungus on which the orchid feeds
- birds of a feather — If you refer to two people as birds of a feather, you mean that they have the same interests or are very similar.
- broadcasting house — any of a number of buildings in the UK from which the BBC broadcasts or has broadcast
- cathode dark space — Crookes dark space.
- centralized school — a public school formed from the pupils and teachers of a number of discontinued smaller schools, especially in a rural district.
- chambered nautilus — nautilus (def 1).
- character disorder — a disorder characterized by socially undesirable behavior, as poor control of impulses or inability to maintain close emotional relationships, and by absence of anxiety or guilt.
- chartered surveyor — (in Britain) a surveyor who is registered with the Royal Institution of Chartered Surveyors as having the qualifications, training, and experience to satisfy their professional requirements
- chickenheartedness — Alternative form of chicken-heartedness.
- chinese water deer — a small Chinese or Korean deer, Hydropotes inermis, having tusks and no antlers: introduced into England and France
- chord of the sixth — sixth chord.
- chrétien de troyes — 12th century, French poet, who wrote the five Arthurian romances Erec; Cligès; Lancelot, le chevalier de la charette; Yvain, le chevalier au lion; and Perceval, le conte del Graal (?1155–?1190), the first courtly romances
- christian democrat — a member or supporter of a Christian Democratic party
- christian endeavor — an organization of young people of various evangelical Protestant churches, formed in 1881 to promote Christian principles and service.
- christian reformed — of or relating to a Protestant denomination (Christian Reformed Church) organized in the U.S. in 1857 by groups that had seceded from the Dutch Reformed Church.
- christine de pisan — ?1364–?1430, French poet and prose writer, born in Venice. Her works include ballads, rondeaux, lays, and a biography of Charles V of France
- coast rhododendron — a rhododendron, Rhododendron macrophyllum, of western North America, having large clusters of rose-purple flowers spotted with brown: the state flower of Washington.
- connected subgraph — (mathematics) A connected graph consisting of a subset of the nodes and edges of some other graph.
- cordless telephone — a portable battery-powered telephone with a short-range radio link to a fixed base unit
- cot death syndrome — the unexplained sudden death of an infant during sleep
- crested flycatcher — any of various tyrant flycatchers (esp. genus Myiarchus) with a prominent crest
- crested wheatgrass — a forage grass, Agropyron cristatum, native to Eurasia and grown in the Great Plains as pasturage, hay, and for erosion control.
- daisywheel printer — (printer) A kind of impact printer where the characters are arranged on the ends of the spokes of a wheel (resembling the petals on a daisy). The wheel (usually made of plastic) is rotated to select the character to print and then an electrically operated hammer mechanism bends the selected spoke forward slightly, sandwiching an ink ribbon between the character and the paper, as in a typewriter. One advantage of this arrangement over that of a typewriter is that different wheels may be inserted to produce different typefaces.
- deanthropomorphism — the ridding of philosophy or religion of anthropomorphic beliefs and doctrines.
- dechristianization — The act of dechristianizing; the systematic removal of Christianity or Christian elements.
- demorgan's theorem — (logic) A logical theorem which states that the complement of a conjunction is the disjunction of the complements or vice versa. In symbols: not (x and y) = (not x) or (not y) not (x or y) = (not x) and (not y) E.g. if it is not the case that I am tall and thin then I am either short or fat (or both). The theorem can be extended to combinations of more than two terms in the obvious way. The same laws also apply to sets, replacing logical complement with set complement, conjunction ("and") with set intersection, and disjunction ("or") with set union. A (C) programmer might use this to re-write if (!foo && !bar) ... as if (!(foo || bar)) ... thus saving one operator application (though an optimising compiler should do the same, leaving the programmer free to use whichever form seemed clearest).
- dendrochronologist — One who carries out dendrochronology.
- depth-first search — (algorithm) A graph search algorithm which extends the current path as far as possible before backtracking to the last choice point and trying the next alternative path. Depth-first search may fail to find a solution if it enters a cycle in the graph. This can be avoided if we never extend a path to a node which it already contains. Opposite of breadth first search. See also iterative deepening.
- destruct mechanism — a mechanism that causes the destruction of a rocket or missile when activated
- devil's paintbrush — a perennial European hawkweed (Hieracium aurantiacum) with leafless flower stalks bearing a cluster of orange-red heads: now a common weed in N U.S. and Canada
- diatomaceous earth — an unconsolidated form of diatomite
- diethylstilbestrol — a nonsteroidal synthetic estrogen, C 18 H 20 O 2 , used in medicine chiefly in the treatment of menopausal symptoms and in animal feeds for chemical caponization: formerly used during pregnancy for the prevention of miscarriage but discontinued owing to its association with an increased risk of vaginal and cervical cancers in women having had fetal exposure. Abbreviation: DES.
- digital switchover — the process of changing the method of transmitting television from analogue to digital format
- 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.
- discharge printing — a fabric-printing method in which the material is dyed and then certain areas are discharged so as to permit the original hue or its color replacement to act as a pattern against the colored ground.
- disenfranchisement — to disfranchise.
- duchenne dystrophy — the most common form of muscular dystrophy, usually affecting only boys
- duty-free shopping — the making of duty-free purchases
- dysthymic disorder — a psychiatric disorder characterized by generalized depression that lasts for at least a year
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