20-letter words containing d, h, i
- chromatic adaptation — the alteration by photosynthesizing organisms of the proportions of their photosynthetic pigments in response to the intensity and colour of the available light, as shown by algae in the littoral zone, which change from green to red as the zone is descended
- chromaticity diagram — a diagram in which values of two chromaticity coordinates are marked on a pair of rectangular axes, a point in the plane of these axes representing the chromaticity of any colour
- chrono-logical order — the arrangement of things following one after another in time: Put these documents in chronological order.
- combination sandwich — a big sandwich with a mixed filling
- common lodging house — a cheap lodging house
- contradistinguishing — Present participle of contradistinguish.
- convective discharge — the repulsion of ions of a gas by a highly charged body, creating a discernible wind.
- crime and punishment — a novel (1866) by Feodor Dostoevsky.
- cut the gordian knot — to find a quick, bold solution for a perplexing problem
- cylinder head gasket — (in an automobile engine) a gasket placed between the cylinder and the cylinder heads to avoid leaks of coolant and compression
- daylight saving time — Daylight Saving Time is a period of time in the summer when the clocks are set one hour forward, so that people can have extra light in the evening.
- daylight-saving time — the civil time observed when daylight saving is adopted in a country or community.
- de la madrid hurtado — Miguel [mee-gel] /miˈgɛl/ (Show IPA), 1934–2012, Mexican political leader: president 1982–88.
- death of ivan ilyich — a short novel (1884) by Leo Tolstoy.
- deduct from the bill — If you deduct an item or expense from the bill at a restaurant or hotel, you take a charge out of a customer's bill.
- deep vein thrombosis — Deep vein thrombosis is a serious medical condition caused by blood clots in the legs moving up to the lungs. The abbreviation DVT is also used.
- deep-vein thrombosis — a condition in which a blood clot forms in a vein deep beneath the skin, typically in the leg or pelvic area: Immobility and lack of exercise are risk factors for deep-vein thrombosis.
- demographic timebomb — a predicted shortage of school-leavers and consequently of available workers, caused by an earlier drop in the birth rate, resulting in an older workforce
- deontological ethics — the branch of ethics dealing with right action and the nature of duty, without regard to the goodness or value of motives or the desirability of the ends of any act.
- diabetic retinopathy — a disorder of the blood vessels of the retina occurring as a complication of poorly controlled diabetes mellitus and often leading to blindness.
- dialectical theology — a form of neoorthodox theology emphasizing the infinite tensions, paradoxes, and basic ambiguities inherent in Christian existence, and holding, against rationalism, that God is unknowable to humans except through divine grace and revelation.
- diammonium phosphate — a white, crystalline, water-soluble compound, (NH 4) 2 HPO 4 , used as fertilizer, in fire extinguishers, etc.
- diamond in the rough — a diamond in its natural state
- dichloroethyl formal — a colorless liquid, C 5 H 10 O 2 Cl 2 , used chiefly as a solvent and in the manufacture of certain synthetic rubbers.
- dichotomous question — a question to which there can only be one of two answers, often "yes" or "no"
- difference threshold — the minimum difference between two stimuli that is just detectable by a person
- differential housing — the casing that houses the differential of a motor vehicle
- diisobutyl phthalate — a clear, colorless liquid, C 14 H 26 O 4 , used chiefly as a plasticizer for nitrocellulose.
- dimethylanthranilate — a colorless or pale-yellow liquid, C 9 H 11 NO 2 , having a grape odor: used chiefly in perfumes, flavorings, and drugs.
- diophantine analysis — any of several methods for finding integral solutions for equations with more than one variable whose coefficients are integers.
- diophantine equation — an equation involving more than one variable in which the coefficients of the variables are integers and for which integral solutions are sought.
- diphenylene diketone — a compound used in dye manufacture
- disciplinary hearing — a hearing at which the conduct of a member of an organization, profession etc is examined and a punishment may be handed down
- discounted cash flow — a technique for appraising an investment that takes into account the different values of future returns according to when they will be received
- dispersion hardening — the strengthening of an alloy as a result of the presence of fine particles in the lattice
- disruptive discharge — the sudden, large increase in current through an insulating medium resulting from complete failure of the medium under electrostatic stress.
- distress merchandise — goods sold below the prevailing price in order to raise cash quickly or to meet some other financial emergency.
- distribution channel — trade: retailer
- district high school — a school in a rural area that includes primary and post-primary classes
- docosahexaenoic acid — DHA.
- doctor of philosophy — Also called doctorate. the highest degree awarded by a graduate school, usually to a person who has completed at least three years of graduate study and a dissertation approved by a board of professors.
- domestic heating oil — a liquid petroleum product used to fuel residential building furnaces or boilers
- dressed to the nines — a cardinal number, eight plus one.
- drink with the flies — to drink alone
- drive a hard bargain — be tough negotiator
- early modern english — the English language represented in printed documents of the period starting with Caxton (1476) and ending with Dryden (1700).
- electrocardiographic — Of or pertaining to an electrocardiogram (ECG) or electrocardiograph.
- electrohydrodynamics — (physics) the study of the dynamics of electrically conducting fluid.
- epidural anaesthesia — numbing injection in the spine
- fight tooth and nail — fight fiercely