18-letter words containing a, l, e, y
- chemical pregnancy — a pregnancy that is confirmed by a pregnancy test but not by clinical signs and terminates before clinical signs can be observed.
- circulatory system — the system concerned with the transport of blood and lymph, consisting of the heart, blood vessels, lymph vessels, etc
- clay-colored robin — any of several small Old World birds having a red or reddish breast, especially Erithacus rubecula, of Europe.
- climbing hydrangea — a woody vine, Hydrangea anomala, of eastern Asia, having shiny, egg-shaped leaves and flat-topped white flower clusters, and climbing by aerial rootlets.
- color transparency — a positive color image photographically produced on transparent film or glass and viewed by transmitted light, usually by projection.
- committed facility — an agreement by a bank to provide a customer with funds up to a specified limit at a specified rate of interest
- community language — a language spoken by members of a minority group or community within a majority language context
- complementary base — either of the nucleotide bases linked by a hydrogen bond on opposite strands of DNA or double-stranded RNA: guanine is the complementary base of cytosine, and adenine is the complementary base of thymine in DNA and of uracil in RNA.
- complementary gene — one of a pair of genes, each from different loci, that together are required for the expression of a certain characteristic
- complexity measure — (algorithm) A quantity describing the complexity of a computation.
- continental system — French system.
- cooling degree-day — a degree-day above the standard temperature of 75°F (24°C), used in estimating the energy requirements for air conditioning and refrigeration.
- corpuscular theory — the theory, originally proposed by Newton, and revived with the development of the quantum theory, that light consists of a stream of particles
- countercyclicality — The quality of being countercyclical.
- cranial osteopathy — osteopathy that focuses on the cranium and the spine
- credibility rating — a supposed measure of how far a person can be believed or trusted
- creeping paralysis — any slow process that causes a system, government, etc, to stop working efficiently
- crested flycatcher — any of various tyrant flycatchers (esp. genus Myiarchus) with a prominent crest
- crystal microphone — a microphone that uses a piezoelectric crystal to convert sound energy into electrical energy
- cultural diversity — the cultural variety and cultural differences that exist in the world, a society, or an institution: Dying languages and urbanization are threats to cultural diversity.
- cyclopean concrete — concrete containing stones larger than 6 inches (15 cm).
- 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.
- david lloyd george — David, 1st Earl of Dwyfor [doo-vawr] /ˈdu vɔr/ (Show IPA), 1863–1945, British statesman: prime minister 1916–22.
- daytime television — television broadcasts that are shown during the daytime rather than in the evening
- 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.
- deferred liability — income received in advance and carried forward as a liability until the associated goods, services, or benefits are delivered
- depository library — a library designated by law to receive without charge all or a selection of the official publications of a government.
- dialytic telescope — a type of achromatic telescope with a second correcting lens
- dietary supplement — a substance taken in addition to what you eat in order to promote health
- 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.
- dimethyltryptamine — a hallucinogenic drug, C 12 H 16 N 2 , with an action of short duration. Abbreviation: DMT.
- diphosphoglycerate — an ester of phosphoric acid and glyceric acid that occurs in the blood and that promotes the release of hemoglobin-bound oxygen.
- disability pension — a pension paid to people who are unable to continue to work because of a disability
- discourse analysis — the study of the rules or patterns characterizing units of connected speech or writing longer than a sentence.
- disproportionately — not proportionate; out of proportion, as in size or number.
- domremy-la-pucelle — a village in Lorraine, NE France, SW of Nancy: birthplace of Joan of Arc.
- dry-powder inhaler — A dry-powder inhaler is a device that delivers medication to the lungs in the form of a dry powder.
- dynamically scoped — dynamic scope
- dysfunctionalities — Plural form of dysfunctionality.
- electrocyclization — (organic chemistry) an electrocyclic reaction.
- electrodynamometer — An instrument that measures electric current by indicating the strength of repulsion or attraction between the magnetic fields of two sets of coils, one fixed and one movable.
- electrophotography — Any of several methods of photocopying in which an image is created and then transferred between surfaces using static electricity.
- elementary student — primary school pupil
- elementary teacher — a teacher in an elementary school
- emotional literacy — the ability to deal with one's emotions and recognize their causes
- enantioselectivity — (chemistry) The selectivity of a reaction towards one of a pair of enantiomers.
- epicycloidal wheel — one of the planetary gears of an epicyclic train