18-letter words containing a, e, r, i, l
- dependent variable — a variable in a mathematical equation or statement whose value depends on that taken on by the independent variable
- depository library — a library designated by law to receive without charge all or a selection of the official publications of a government.
- descriptive clause — a relative clause that describes or supplements but is not essential in establishing the identity of the antecedent and is usually set off by commas in English. In This year, which has been dry, is bad for crops the clause which has been dry is a nonrestrictive clause.
- 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
- dia de los muertos — Day of the Dead.
- diaminofluorescein — (organic compound) A fluorescein into which two amino groups have been substituted.
- diamondback turtle — any edible North American terrapin of the genus Malaclemys, esp M. terrapin, occurring in brackish and tidal waters and having diamond-shaped markings on the shell: family Emydidae
- 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.
- dietary supplement — a substance taken in addition to what you eat in order to promote health
- digital multimeter — (electronics) (DMM) A peice of test equipment used for measuring voltage, current, resistance, and possibly other electircal quantities and displaying the value in number form.
- digital signatures — digital signature
- 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.
- 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.
- diplomatic service — diplomatic corps
- directional signal — any of four signal lights on the front left, front right, rear left, and rear right of an automotive vehicle that, when actuated by the driver, flash in pairs on the side toward which a turn is to be made.
- discourse analysis — the study of the rules or patterns characterizing units of connected speech or writing longer than a sentence.
- dispersible tablet — A dispersible tablet is a tablet that disintegrates in water or other liquid.
- disproportionately — not proportionate; out of proportion, as in size or number.
- dominican republic — a republic in the West Indies, occupying the E part of the island of Hispaniola. 19,129 sq. mi. (49,545 sq. km). Capital: Santo Domingo.
- dragline excavator — a power shovel that operates by being dragged by cables at the end of an arm or jib: used for quarrying, opencast mining, etc
- dramatic monologue — a poetic form in which a single character, addressing a silent auditor at a critical moment, reveals himself or herself and the dramatic situation.
- dressing table set — a set including a hairbrush, mirror and comb, often with silver backs
- drinking chocolate — sweetened cocoa powder
- dry-powder inhaler — A dry-powder inhaler is a device that delivers medication to the lungs in the form of a dry powder.
- eastern algonquian — a subgroup of the Algonquian language family, comprising the languages spoken aboriginally from Nova Scotia to northeastern North Carolina.
- echeverria alvarez — Luis [lwees] /lwis/ (Show IPA), born 1922, Mexican political leader: president 1970–76.
- eclipsing variable — a variable star whose changes in brightness are caused by periodic eclipses of two stars in a binary system.
- ecma international — (body) (Formerly European Computer Manufacturers Association) An industry association founded in 1961 and dedicated to the standardisation of information and communication systems. ECMA edits standards and technical reports. All ECMA publications are available free of charge. The best known ECMA standard is ECMA 262, defining the scripting language ECMAScript.
- eggshell porcelain — a type of very thin translucent porcelain originally made in China
- ejaculatio praecox — premature ejaculation during sexual intercourse
- eleanor of castile — 1246–90, Spanish wife of Edward I of England. Eleanor Crosses were erected at each place at which her body rested between Nottingham, where she died, and London, where she is buried
- electoral district — an area that is considered as unit for the purposes of an election
- electoral register — An electoral register is an official list of all the people who have the right to vote in an election.
- electric discharge — electricity emitted
- electric potential — the work required to transfer a unit positive electric charge from an infinite distance to a given point against an electric field
- electrical circuit — An electrical circuit is a complete route that an electric current can flow around.
- electrical failure — an instance when an electricity supply stops working
- electrocardiograms — Plural form of electrocardiogram.
- electrocardiograph — A machine used for electrocardiography.
- electrocorticogram — a record of brain waves obtained by placing electrodes directly on the surface of the exposed cerebral cortex
- electrocyclization — (organic chemistry) an electrocyclic reaction.
- electrodesiccation — The drying of tissue, and the prevention of bleeding, using a high-frequency electric current.
- electronic banking — the transfer of money between financial institutions through an exchange of electronic signals over a network
- electronic mailbox — a device used to store electronic mail
- electronic tagging — Electronic tagging is a system in which a criminal or suspected criminal has an electronic device attached to them which enables the police to know if they leave a particular area.
- electronic warfare — the military use of electronics to prevent or reduce an enemy's effective use and to protect friendly use of electromagnetic radiation equipment
- electroretinograms — Plural form of electroretinogram.