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Chorography

the mapping or description of a region or district.

Choroid

resembling the chorion; as, the choroid plexuses of the ventricles of the brain, and the choroid coat of the eyeball. The choroid coat of the eye. See Eye.

Chorology

The science which treats of the laws of distribution of living organisms over the earth's surface as to latitude, altitude, locality, etc.

Chorometry

The art of surveying a region or district.

Chortle

A word coined by Lewis Carroll (Charles L. Dodgson), and usually explained as a combination of chuckle and snort.

Chorus

To sing in chorus; to exclaim simultaneously.

Chose

imp. p. p. of Choose.

Chosen

One who, or that which is the object of choice or special favor.

Chouan

One of the royalist insurgents in western France (Brittany, etc.), during and after the French revolution.

Chough

A bird of the Crow family (Fregilus graculus) of Europe. It is of a black color, with a long, slender, curved bill and red legs; -- also called chauk, chauk-daw, chocard, Cornish chough, red-legged crow. The name is also applied to several allied birds, as the Alpine chough.

Chouicha

The salmon of the Columbia River or California. See Quinnat.

Chouka

The Indian four-horned antelope; the chikara.

Chouse

One who is easily cheated; a tool; a simpleton; a gull.

Chout

An assessment equal to a fourth part of the revenue.

Chow

A prefecture or district of the second rank in China, or the chief city of such a district; -- often part of the name of a city, as in Foochow.

Chowry

A whisk to keep off files, used in the East Indies.

Chowter

To grumble or mutter like a froward child.

Chrematistics

The science of wealth; the science, or a branch of the science, of political economy.

Chreotechnics

The science of the useful arts, esp. agriculture, manufactures, and commerce.

Chrestomathy

A selection of passages, with notes, etc., to be used in acquiring a language; as, a Hebrew chrestomathy.

Chrismal

Of or pertaining to or used in chrism.

Chrismation

The act of applying the chrism, or consecrated oil.

Christ

The Anointed; an appellation given to Jesus, the Savior. It is synonymous with the Hebrew Messiah.

Christ's-thorn

One of several prickly or thorny shrubs found in Palestine, especially the Paliurus aculeatus, Zizyphus Spina-Christi, and Zizyphus vulgaris. The last bears the fruit called jujube, and may be considered to have been the most readily obtainable for the Crown of Thorns.

Christcross

The mark of the cross, as cut, painted, written, or stamped on certain objects, -- sometimes as the sign of 12 o'clock on a dial.

christella

any of several tropical ferns of the genus Christella having thin brittle fronds.

Christendom

The profession of faith in Christ by baptism; hence, the Christian religion, or the adoption of it.

Christian

Pertaining to Christ or his religion; as, Christian people.

Christianization

The act or process of converting or being converted to a true Christianity.

Christianize

To adopt the character or belief of a Christian; to become Christian.

Christlike

Resembling Christ in character, actions, etc.

Christmas

An annual church festival (December 25) and in some States a legal holiday, in memory of the birth of Christ, often celebrated by a particular church service, and also by special gifts, greetings, and hospitality.

Christmasberry

a spiny evergreen shrub of southeastern U. S. (Lycium carolinianum) having spreading branches with usually blue or mauve flowers and red berries.

Christocentric

Making Christ the center, about whom all things are grouped, as in religion or history; tending toward Christ, as the central object of thought or emotion.

Christology

A treatise on Christ; that department of theology which treats of the personality, attributes, or life of Christ.

Christophany

An appearance of Christ, as to his disciples after the crucifixion.

Chromascope

An instrument for showing the optical effects of color.

chromaticity

the quality of a color as determined by its dominant wavelength.

Chromatics

The science of colors; that part of optics which treats of the properties of colors.

chromatid

one of two identical strands into which a chromosome splits during mitosis.

Chromatin

The deeply staining substance of the nucleus and chromosomes of eukaryotic cells, composed of DNA and basic proteins (such as histones), the DNA of which comprises the predominant physical basis of inheritance. It was, at the beginning of the 20th century, supposed to be the same substance as was then termed idioplasm or germ plasm. In most eukaryotic cells, there is also DNA in certain plasmids, such as mitochondria, or (in plant cells) chloroplasts; but with the exception of these cytoplasmic genetic factors, the nuclear DNA of the chromatin is believed to contain all the genetic information required to code for the development of an adult organism. In the interphase nucleus the chromosomes are dispersed, but during cell division or meiosis they are condensed into the individually recognizable chromosomes. The set of chromosomes, or a photographic representation of the full set of chromosomes of a cell (often ordered for presentation) is called a karyotype.

chromatogram

the paper strip, column, gel, or TLC plate on which subsances have been separated by a process of chromatography{2}.

chromatograph

a piece of equipment used to perform chromatography{2}.

Chromatophore

A contractile cell or vesicle containing liquid pigment and capable of changing its form or size, thus causing changes of color in the translucent skin of such animals as possess them. They are highly developed and numerous in the cephalopods.

Chromatoscope

A reflecting telescope, part of which is made to rotate eccentrically, so as to produce a ringlike image of a star, instead of a point; -- used in studying the scintillation of the stars.

Chromatrope

An instrument for exhibiting certain chromatic effects of light (depending upon the persistence of vision and mixture of colors) by means of rapidly rotating disks variously colored.

Chrome

To treat with a solution of potassium bichromate, as in dyeing.

chromesthesia

a form of synesthesia in which nonvisual stimulation results in the experience of color sensations.

Chromic

Pertaining to, or obtained from, chromium; -- said of the compounds of chromium in which it has its higher valence.

Chromid

One of the Chromid/, a family of fresh-water fishes abundant in the tropical parts of America and Africa. Some are valuable food fishes, as the bulti of the Nile.

Chromite

A black submetallic mineral consisting of oxide of chromium and iron; -- called also chromic iron.

Chromium

A comparatively rare element occurring most abundantly in the mineral chromite. Atomic weight 52.5. Symbol Cr. When isolated it is a hard, brittle, grayish white metal, fusible with difficulty. Its chief commercial importance is for its compounds, as potassium chromate, lead chromate, etc., which are brilliantly colored and are used dyeing and calico printing. Called also chrome.

Chromoblast

An embryonic cell which develops into a pigment cell.

Chromogenic

Containing, or capable of forming, chromogen; as, chromogenic bacteria.

Chromograph

An apparatus by which a number of copies of {ritten katter, kaps, plons, etc., can be made; -- called also hectograph.

Chromolithograph

A picture printed in tints and colors by repeated impressions from a series of stones prepared by the lithographic process.

Chromophane

A general name for the several coloring matters, red, green, yellow, etc., present in the inner segments in the cones of the retina, held in solution by fats, and slowly decolorized by light; distinct from the photochemical pigments of the rods of the retina.

Chromophore

Any chemical group or residue (as NO2; N2; or O2) which imparts some decided color to the compound of which it is an ingredient.

Chromophotograph

A picture made by any of the processes for reproducing photographs in colors; a color photograph.

Chromoplastid

A protoplasmic granule of some other color than green; -- also called chromoleucite.

Chromosome

One of the minute bodies into which the chromatin of the nucleus is resolved during mitotic cell division; the idant of Weismann.

Chromosphere

An atmosphere of rare matter, composed principally of incandescent hydrogen gas, surrounding the sun and enveloping the photosphere. Portions of the chromosphere are here and there thrown up into enormous tongues of flame.

Chromotype

A sheet printed in colors by any process, as a chromolithograph. See Chromolithograph.

Chromous

Of, pertaining to, or derived from, chromium, when this element has a valence lower than that in chromic compounds.

Chromule

A general name for coloring matter of plants other than chlorophyll, especially that of petals.

Chronic

Relating to time; according to time.

Chronicle

To record in a history or chronicle; to record; to register.

Chronicler

A writer of a chronicle; a recorder of events in the order of time; an historian.

Chronogram

An inscription in which certain numeral letters, made to appear specially conspicuous, on being added together, express a particular date or epoch, as in the motto of a medal struck by Gustavus Adolphus in 1632: ChrIstVs DVX; ergo trIVMphVs. - the capitals of which give, when added as numerals, the sum 1632.

Chronograph

An instrument for measuring or recording intervals of time, upon a revolving drum or strip of paper moved by clockwork. The action of the stylus or pen is controlled by electricity.

Chronological Chronologic

Relating to chronology; containing an account of events in the order of time; according to the order of time; as, chronological tables.

Chronology

The science which treats of measuring time by regular divisions or periods, and which assigns to events or transactions their proper dates.

Chronometer

An instrument for measuring time; a timekeeper.

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