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Quinine

An alkaloid extracted from the bark of several species of cinchona (esp. Cinchona Calisaya) as a bitter white crystalline substance, C20H24N2O2. Hence, by extension (Med.), any of the salts of this alkaloid, as the acetate, chloride, sulphate, etc., employed as a febrifuge or antiperiodic. Called also quinia, quinina, etc.

Quininic

Pertaining to, or designating, a nitrogenous acid obtained as a yellow crystalline substance by the oxidation of quinine.

Quinizine

any one of a series of nitrogenous bases, certain of which are used as antipyretics.

Quinnat

The California salmon (Oncorhynchus choicha); -- called also chouicha, king salmon, chinnook salmon, and Sacramento salmon. It is of great commercial importance.

Quinoa

The seeds of a kind of goosewort (Chenopodium Quinoa), used in Chili and Peru for making porridge or cakes; also, food thus made.

Quinogen

A hypothetical radical of quinine and related alkaloids.

Quinoidine

A brownish resinous substance obtained as a by-product in the treatment of cinchona bark. It consists of a mixture of several alkaloids.

Quinoline

A nitrogenous base, C9H7N obtained as a pungent colorless liquid by the distillation of alkaloids, bones, coal tar, etc. It the nucleus of many organic bodies, especially of certain alkaloids and related substances; hence, by extension, any one of the series of alkaloidal bases of which quinoline proper is the type.

Quinology

The science which treats of the cultivation of the cinchona, and of its use in medicine.

Quinone

A crystalline substance, C6H4O2 (called also benzoketone), first obtained by the oxidation of quinic acid and regarded as a double ketone; also, by extension, any one of the series of which quinone proper is the type.

Quinovic

Pertaining to, or designating, a crystalline acid obtained from some varieties of cinchona bark.

Quinovin

An amorphous bitter glucoside derived from cinchona and other barks. Called also quinova bitter, and quinova.

Quinoxaline

Any one of a series of complex nitrogenous bases obtained by the union of certain aniline derivatives with glyoxal or with certain ketones.

Quinoxyl

The hypothetical radical of certain quinone derivatives related to rhodizonic acid.

Quinoyl

A radical of which quinone is the hydride, analogous to phenyl.

Quinquarticular

Relating to the five articles or points; as, the quinquarticular controversy between Arminians and Calvinists.

Quinquefid

Sharply cut about halfway to the middle or base into five segments; as, a quinquefid leaf or corolla.

Quinquelocular

Having five cells or loculi; five-celled; as, a quinquelocular pericarp.

Quinquenerved

Having five nerves; -- said of a leaf with five nearly equal nerves or ribs rising from the end of the petiole.

Quinquennial

Occurring once in five years, or at the end of every five years; also, lasting five years. A quinquennial event.

Quinquereme

A galley having five benches or banks of oars; as, an Athenian quinquereme.

Quinquevir

One of five commissioners appointed for some special object.

Quinsy

An inflammation of the throat, or parts adjacent, especially of the fauces or tonsils, attended by considerable swelling, painful and impeded deglutition, and accompanied by inflammatory fever. It sometimes creates danger of suffocation; -- called also squinancy, and squinzey.

Quint

A set or sequence of five, as in piquet.

Quintain

An object to be tilted at; -- called also quintel.

Quintal

A hundredweight, either 112 or 100 pounds, according to the scale used. Cf. Cental.

Quintan

Occurring as the fifth, after four others also, occurring every fifth day, reckoning inclusively; as, a quintan fever. An intermittent fever which returns every fifth day, reckoning inclusively, or in which the intermission lasts three days.

Quintessence

To distil or extract as a quintessence; to reduce to a quintessence.

Quintessential

Of the nature of a quintessence; purest; most characteristic.

Quintette Quintet

A composition for five voices or instruments; also, the set of five persons who sing or play five-part music.

Quintic

Of the fifth degree or order. A quantic of the fifth degree. See Quantic.

Quintile

The aspect of planets when separated the fifth part of the zodiac, or 72/.

Quintilllion

According to the French notation, which is used on the Continent and in America, the cube of a million, or a unit with eighteen ciphers annexed; according to the English notation, a number produced by involving a million to the fifth power, or a unit with thirty ciphers annexed. See the Note under Numeration.

Quintine

The embryonic sac of an ovule, sometimes regarded as an innermost fifth integument. Cf. Quartine, and Tercine.

Quintole

A group of five notes to be played or sung in the time of four of the same species.

Quintroon

The off-spring of an octoroon and a white person.

Quintuple

To make fivefold, or five times as much or many.

Quintuplet

A collection or combination of five of a kind.

Quintuplets

five children born from one mother in a single pregnancy.

Quinzaine

The fifteenth day after a feast day, including both in the reckoning.

Quinze

A game at cards in which the object is to make fifteen points.

Quip

To scoff; to use taunts.

quipster

A person who frequently makes quips.

Quipu

A contrivance employed by the ancient Peruvians, Mexicans, etc., as a substitute for writing and figures, consisting of a main cord, from which hung at certain distances smaller cords of various colors, each having a special meaning, as silver, gold, corn, soldiers. etc. Single, double, and triple knots were tied in the smaller cords, representing definite numbers. It was chiefly used for arithmetical purposes, and to register important facts and events.

Quirboilly

Leather softened by boiling so as to take any required shape. Upon drying, it becomes exceedingly hard, and hence was formerly used for armor.

Quire

A collection of twenty-four sheets of paper of the same size and quality, unfolded or having a single fold; one twentieth of a ream.

Quirinal

Of, pertaining to, or designating, the hill Collis Quirinalis, now Monte Quirinale (one of the seven hills of Rome), or a modern royal place situated upon it. Also used substantively.

Quirk

A sudden turn; a starting from the point or line; hence, an artful evasion or subterfuge; a shift; a quibble; as, the quirks of a pettifogger.

Quirked

Having, or formed with, a quirk or quirks.

Quirkish

Consisting of quirks; resembling a quirk.

Quirky

Full of quirks; tricky; as, a quirky lawyer.

Quirt

A rawhide whip plaited with two thongs of buffalo hide.

Quit

To go away; to depart; to stop doing a thing; to cease.

Quitclaim

To release or relinquish a claim to; to release a claim to by deed, without covenants of warranty against adverse and paramount titles.

Quitrent

A rent reserved in grants of land, by the payment of which the tenant is quit from other service.

Quits

See the Note under Quit, a.

Quittal

Return; requital; quittance.

Quittor

A chronic abscess, or fistula of the coronet, in a horse's foot, resulting from inflammation of the tissues investing the coffin bone.

Quiver

A case or sheath for arrows to be carried on the person.

Quivered

Furnished with, or carrying, a quiver.

Quixotic

Like Don Quixote; romantic to extravagance; prone to pursue unrealizable goals; absurdly chivalric; apt to be deluded. See also quixotism.

Quixotism

That form of delusion which leads to extravagant and absurd undertakings or sacrifices in obedience to a morbidly romantic ideal of duty or honor, as illustrated by the exploits of Don Quixote in knight-errantry. See quixotic.

Quiz

To conduct a quiz. See Quiz, n., 4.

Quizzical

Relating to quizzing; given to quizzing; of the nature of a quiz; farcical; sportive.

Quob

To throb; to quiver.

Quod

To put in quod, or prison; to lock up; to jug.

Quoddies

Herring taken and cured or smoked near Quoddy Head, Maine, or near the entrance of Passamaquoddy Bay.

Quodlibetical

Not restricted to a particular subject; discussed for curiosity or entertainment.

Quoin

Originally, a solid exterior angle, as of a building; now, commonly, one of the selected pieces of material by which the corner is marked.

Quoll

A marsupial of Australia (Dasyurus macrurus), about the size of a cat.

Quondam

A person dismissed or ejected from a position.

Quorum

Such a number of the officers or members of any body as is competent by law or constitution to transact business; as, a quorum of the House of Representatives; a constitutional quorum was not present.

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