17-letter words containing o, n, h
- cromwellian chair — an upright oaken chair, often with arms, having all pieces turned and a seat and back panel of leather or cloth attached with brass-headed nails.
- cross one's heart — to promise or pledge, esp by making the sign of a cross over one's heart
- cross the rubicon — If you say that someone has crossed the Rubicon, you mean that they have reached a point where they cannot change a decision or course of action.
- crucifixion thorn — one of several leafless, very thorny shrubs or small trees of the southwestern desert areas of North America.
- cyanogen chloride — a colorless, volatile, poisonous liquid, CNCl, used chiefly in the synthesis of compounds containing the cyano group.
- cytoarchitectonic — Of or pertaining to cytoarchitectonics (cytoarchitecture).
- cytotechnologists — the study of human cells to detect signs of cancer or other abnormalities.
- d-shell connector — (hardware) One of the family of connectors: DA-15, DB-25, DC-37, DD-50, DE-9, and DEH-15 [VGA]. The "D" is the shape of the shell, the next letter determines connector size, and the number is the maximum pin count.
- damon and pythias — two friends noted for their mutual loyalty. Damon offered himself as a hostage for Pythias, who was to be executed for treason by Dionysius of Syracuse. When Pythias returned to save his friend's life, he was pardoned
- daphnis and chloe — two lovers in pastoral literature, esp in a prose idyll attributed to the Greek writer Longus
- de-baathification — the process of removing the members and influence of the Ba'ath Party from public office in Iraq following the US-led invasion of 2003
- deduction theorem — the property of many formal systems that the conditional derived from a valid argument by taking the conjunction of the premises as antecedent and the conclusion as consequent is true
- deepwater horizon — an offshore oil platform in the Gulf of Mexico, 40 miles (64km) south-east off the coast of Louisiana, that suffered a massive oil spill following an explosion in April 2010
- dehistoricization — The process or result of dehistoricizing.
- dehospitalization — hospitalization insurance.
- dehydrochlorinase — an enzyme that catalyzes the removal of hydrogen and chlorine atoms or ions from chlorinated hydrocarbons.
- dehydrochlorinate — to remove hydrogen chloride or chlorine and hydrogen from (a substance).
- demythologization — The act of demythologizing, or something demythologized.
- denatured alcohol — ethanol rendered unfit for human consumption by the addition of a noxious substance, as in methylated spirits
- dendroarchaeology — (archaeology) the science that uses dendrochronology to date wooden material from archaeological sites.
- dephlogisticating — Present participle of dephlogisticate.
- dephosphorylation — the removal of a phosphate group from an organic compound, as in the changing of ATP to ADP.
- designer clothing — Designer clothing is fashionable or luxury clothing made by, or carrying the label of, a well-known fashion designer.
- despotic monarchy — absolute monarchy.
- desynchronisation — (British spelling) Alternative form of desynchronization.
- desynchronization — to cause to indicate the same time, as one timepiece with another: Synchronize your watches.
- dextroamphetamine — a dextrorotatory amphetamine, used to suppress appetite
- diacetone alcohol — a colorless, flammable liquid with a pleasant odor, C 6 H 12 O 2 : used as a solvent for lacquers, dyes, cellulose nitrate, and resins.
- diethylene glycol — a syrupy colorless liquid, C 4 H 10 O 3 , used as a solvent for cellulose nitrate and as a fabric softener.
- dietrich von bern — Theodoric of Verona: the name of the eastern Gothic emperor Theodoric as it appears in German legends.
- dihydroergotamine — an ergot alkaloid, C 33 H 37 N 5 O 5 , used in the treatment of various types of migraine headache.
- dihydromorphinone — a narcotic compound, C 17 H 19 O 3 N, prepared from morphine and used chiefly as an analgesic.
- diphenylhydantoin — a white, slightly water-soluble powder, C 15 H 11 N 2 O 2 , used in the form of its sodium salt to prevent or arrest convulsions in epilepsy.
- dishonourableness — Alternative spelling of dishonorableness.
- do the bidding of — to be obedient to; carry out the orders of
- do your own thing — If you do your own thing, you live, act, or behave in the way you want to, without paying attention to convention or depending on other people.
- doberman pinscher — one of a German breed of medium-sized, short-haired dogs having a black, brown, or blue coat with rusty brown markings.
- dog and pony show — an elaborate sales, advertising, or publicity presentation or campaign.
- dog in the manger — a person who selfishly keeps something that he or she does not really need or want so that others may not use or enjoy it.
- down in the dumps — If you are down in the dumps, you are feeling very depressed and miserable.
- down the plughole — If you say that something has gone down the plughole, you mean that it has failed or has been lost or wasted.
- down-at-the-heels — of a shabby, run-down appearance; seedy: He is rapidly becoming a down-at-heel drifter and a drunk.
- down-in-the-mouth — glum
- drawn-thread work — ornamental needlework done by drawing threads out of the fabric and using the remaining threads to form lacelike patterns
- drive-by shooting — an incident in which a person, building, or vehicle is shot at by someone in a moving vehicle
- drop on the floor — To react to an error condition by silently discarding messages or other valuable data. "The gateway ran out of memory, so it just started dropping packets on the floor." Also frequently used of faulty mail and netnews relay sites that lose messages. See also black hole, bit bucket.
- eastern orthodoxy — the faith, practice, membership, and government of the Eastern Orthodox Church.
- eastern townships — an area of central Canada, in S Quebec: consists of 11 townships south of the St Lawrence
- echo cancellation — A process which removes unwanted echoes from the signal on a telephone line. Echoes are usually caused by impedance mismatches along an analogue line.
- echoencephalogram — a graphic record produced by an echoencephalograph.