18-letter words containing a, c, d
- guidance counselor — advisor in schools
- handkerchief table — corner table.
- handlebar mustache — A handlebar mustache is a long thick mustache with curled ends.
- handyman's special — fixer-upper.
- hebdomadal council — the governing council or senate of Oxford University
- hegelian dialectic — an interpretive method, originally used to relate specific entities or events to the absolute idea, in which some assertible proposition (thesis) is necessarily opposed by an equally assertible and apparently contradictory proposition (antithesis) the mutual contradiction being reconciled on a higher level of truth by a third proposition (synthesis)
- heptadecanoic acid — a colourless crystalline water-insoluble carboxylic acid used in organic synthesis. Formula: CH3(CH2)15COOH
- heteroscedasticity — (statistics) The property of a series of random variables of 'not' every variable having the same finite variance.
- heteroskedasticity — Alternative spelling of heteroscedasticity.
- hidalgo y costilla — Miguel [mee-gel] /miˈgɛl/ (Show IPA), 1753–1811, Mexican priest, patriot, and revolutionist.
- higher-order macro — A means of expressing certain higher-order functions in a first order language. Proposed by Phil Wadler. Higher-order macros cannot be recursive at the top level but they may contain recursive definitions. E.g. See partial evaluation.
- histamine headache — cluster headache.
- hot-water cylinder — a vertical cylindrical tank for storing hot water, esp an insulated one made of copper used in a domestic hot-water system
- hydrocinnamic acid — a white crystalline compound, C 9 H 10 O 2 , with a floral odor, used in perfumes and flavoring.
- hydrofluorocarbons — Plural form of hydrofluorocarbon.
- hydroxyacetic acid — glycolic acid.
- hyposulfurous acid — an acid, H 2 S 2 O 4 , next in a series below sulfurous acid, known only in solution or in the form of its salts.
- ice cream headache — Also called ice-cream headache. a pain in the temples and forehead brought on by quickly consuming very cold food or drink.
- ideas of reference — a schizophrenic symptom in which the patient thinks that things completely disconnected from him are influencing him or conveying messages to him
- identification tag — either of two oblong metal tags, issued to armed forces personnel, on which are impressed the serial number, name, etc., of the person to whom it is issued, and carried on or about the person at all times.
- impedance matching — the technique of choosing or adjusting electric circuits and components so that the impedance of the load is equal to the internal impedance of the power source, thereby optimizing the power transfer from source to load.
- imploded consonant — a consonant which is pronounced with or by implosion
- in accordance with — conforming to
- in black and white — without colour
- in inverted commas — If you say in inverted commas after a word or phrase, you are indicating that it is inaccurate or unacceptable in some way, or that you are quoting someone else.
- incidental charges — Incidental charges are costs of items and services that are not part of the main bill.
- incidental damages — law: incurred by contract breach
- inconsiderableness — Quality of being inconsiderable.
- indecent behaviour — the offence of committing indecent acts
- indefinite article — an article, as English a, an, that denotes class membership of the noun it modifies without particularizing it.
- independent clause — a clause that can stand alone as a sentence, containing a subject and a predicate with a finite verb, as I was there in the sentence I was there when he arrived.
- indiscriminateness — The state of being indiscriminate.
- indiscriminatingly — In an indiscriminating manner.
- indolebutyric acid — a white or yellowish, crystalline, water-insoluble powder, C 12 H 13 O 2 N, a plant hormone similar to indoleacetic acid and used for the same purposes.
- induction training — training intended to enable new staff and recruits to do their work
- inductive relation — A relation R between domains D and E is inductive if for all chains d1 .. dn in D and e1 .. en in E,
- indus civilization — an ancient civilization that flourished in the Indus River valley, from about 2500 to 1500 b.c.: extensive archaeological excavations at the main sites of Mohenjo-Daro and Harappa in Pakistan.
- industrial vehicle — a vehicle designed for use in industry
- infectious disease — illness spread by person to person
- insurance adjuster — An insurance adjuster is the same as a claims adjuster.
- integrated circuit — a circuit of transistors, resistors, and capacitors constructed on a single semiconductor wafer or chip, in which the components are interconnected to perform a given function. Abbreviation: IC.
- interior decorator — a person whose profession is the execution of interior design.
- interlacing arcade — an arcade, especially a blind one, composed of arches (interlacing arches) so arranged and cut that each arch seems to intersect and be intersected by one or more other arches.
- international code — a code used at sea by the navies of certain nations, using a series of flags representing digits from zero through nine.
- iridescent seaweed — a red alga, Irideae cordata, found on the Pacific coast of North America, having broad, leathery, iridescent blades.
- italian corn salad — a southern European plant, Valerianella eriocarpa, of the valerian family, having edible, spoon-shaped, hairy leaves and dense clusters of pale-blue flowers.
- jack of all trades — a person who is adept at many different kinds of work.
- jack-of-all-trades — a person who is adept at many different kinds of work.
- japanese red cedar — Cryptomeria japonica, an evergreen redwood tree that grows to a height of up to 50m
- juan ponce de leon — Juan [hwahn] /ʰwɑn/ (Show IPA), c1460–1521, Spanish explorer.