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单词 tetrachloromethane
释义

carbon /kärˈbən/

noun
  1. A non-metallic element (symbol C; atomic no 6), widely diffused, occurring uncombined as diamond, graphite and buckminsterfullerene
  2. A piece of carbon (esp an electrode or a lamp-filament), or of carbon paper
  3. A carbon copy
  4. A carbonado diamond
adjective

Of or relating to carbon

ORIGIN: Fr carbone, from L carbō, -ōnis coal, charcoal

carbonāˈceous adjective

  1. Coaly
  2. Containing much carbon
  3. Like carbon

carˈbonate noun

A salt of carbonic acid

transitive verb
  1. To combine or impregnate with carbon dioxide
  2. To carbonize

carbonāˈtion noun

carbonˈatite noun

An intrusive carbonate rock

carbonic /-bonˈik/ adjective

Of or relating to carbon

carbonifˈerous adjective

  1. Producing carbon or coal
  2. (with cap) of or belonging to a period of the Palaeozoic era, between 360 and 300 million years ago (geology; also noun)

carbonizāˈtion or carbonisāˈtion noun

carˈbonize or carˈbonise transitive verb

  1. To reduce to carbon
  2. To char or coke
  3. To cover with carbon
intransitive verb

To become carbonized

carbon anhydride same as carbon dioxide below.

carbon arc noun

An arc between two carbon electrodes, used for high-intensity lighting

carbon black noun

A form of finely divided carbon produced by partial combustion of hydrocarbons, used in making inks and rubber

carbon capture and storage noun

The capture and storage of carbon dioxide emitted from eg power plants, in order to prevent it entering the atmosphere (abbrev CCS)

carbon copy noun

  1. A duplicate of writing or typed matter made by interleaving carbon paper, a paper coated with a pigment made of carbon or other material
  2. Any exact duplicate

carˈbon-copˈy transitive verb

To copy exactly

carbon credit noun

A unit, representing part of a country's or organization's total allowance for the emission of carbon dioxide, which may be traded to another country or organization if the full allowance is not used

carbon cycle noun

  1. The circulation and transfer of carbon between animals, plants and the atmosphere
  2. The function of carbon in various nuclear reactions in stars

carbon dating noun

Estimating the date of death of prehistoric organic material from the amount of carbon-14 still present in it

carbon dioxide noun

An oxide of carbon (CO2), a colourless, odourless, incombustible gas, present in the atmosphere, which in solution in water forms carbonic acid (formerly called carbonˈic-acid gas)

carbon dioxide snow noun

Dry ice (see ice)

carbon disulphide noun

(CS2) a colourless, flammable liquid with an unpleasant smell, used in the manufacture of man-made fibres and solvents

carbon fibres plural noun

Very fine filaments of carbon used in bundles, bound together by resins, to form strong lightweight materials

carbon footprint noun

The extent to which a person, community or organization is responsible for the emission of carbon dioxide into the atmosphere through use of fossil fuels

carˈbon-14 noun

A radioactive isotope of carbon, used eg as a tracer element in biological studies or in dating archaeological material

carbonic acid noun

(H2CO3) a weak acid

carbonic anhydrase noun

An enzyme in blood cells that catalyses the decomposition of carbonic acid into carbon dioxide and water

carbon microphone noun

A microphone in which variations in sound pressure produced in a diaphragm are detected in a current passing through carbon granules which register a decrease of contact resistance as the sound pressure increases

carbon monoxide noun

(CO) a colourless, odourless, very poisonous gas which burns with a blue flame to form carbon dioxide

carbon-neut'ral adjective

(of a human activity) creating no overall increase or decrease in the emission of carbon dioxide into the atmosphere

carbon offsetting noun

The reduction in the emission of carbon from a source to compensate for an emission made elsewhere

carbon process noun (photography)

A printing process using paper sensitized with potassium bichromate and coated with gelatine and a pigment

carbon sink noun

An area, rich in natural flora, that absorbs more carbon dioxide than it produces

carbon steel noun

Steel containing carbon, with different properties according to the quantity of carbon used

carbon tax noun

A tax imposed on industry, and on the users of motor vehicles, to try to limit the amount of carbon being released into the atmosphere from the burning of fossil fuels

carbon tetrachloride noun

(CCl4) a solvent made from chlorine and carbon disulphide (also tetrachloromethane)

carbon trading noun

The trading of carbon credits (qv above)

carˈbon-12 noun

An isotope of carbon with a mass of 12, used as a standard in determining relative atomic and molecular weight

tetra- or tetr- /tet-r(ə)-, ti-tr(a)-/

combining form

Denoting four

ORIGIN: Gr tetra-, combining form of tettares, tessares four

tetrabaˈsic adjective (chem)

  1. Capable of reacting with four equivalents of an acid
  2. (of acids) having four replaceable hydrogen atoms

tetrabasicity /tet-rə-bā-sisˈi-ti/ noun

Tetrabranchia or Tetrabranchiata /-brangˈki-ə, -ki-āˈtə/ plural noun

(Gr branchia gills) a former order of the nautilus subclass of cephalopods, with four gills

tetrabranchˈiate adjective

Four-gilled

noun

Any mollusc belonging to the Tetrabranchia

tetrachloˈride noun

Any compound with four chlorine atoms per molecule

tetrachloroethˈylene or tetrachlorethˈylene noun

C2H2Cl4, a liquid used in dry-cleaning, as a solvent, etc (also called tetrachlorethˈane)

tetrachlorōmēˈthane noun

Carbon tetrachloride

tetˈrachord /-körd/ noun

  1. (Gr chordē string) a four-stringed instrument
  2. A series of four sounds, forming a scale of two tones and a half

tetrachordˈal adjective

tetrachotˈomous adjective

tetrachotomy /-kotˈə-mi/ noun

(Gr tetracha in four parts, and -tomia a cutting) division in fours

tetracˈid adjective

  1. Having four replaceable hydrogen atoms
  2. Capable of replacing four hydrogen atoms of an acid

tetract /tetˈrakt/ adjective

(Gr aktīs, -īnos ray) four-rayed

noun

A four-rayed sponge spicule

tetractˈinal (or /-īˈnəl/) or tetracˈtine adjective

Tetractinellˈida plural noun

An order of sponges in which some of the spicules are four-rayed

tetracyclic /-sīˈklik/ adjective

  1. (Gr kyklos ring, wheel) of, in or with four whorls or rings
  2. (of a compound) having four fused hydrocarbon rings in its molecular structure (chem)

tetracyˈcline noun

A crystalline antibiotic used to treat a wide range of infections, esp of the respiratory and urinary tracts

tetrad /tetˈrad/ noun

  1. A group of four
  2. An atom, radical or element having a combining power of four (chem)

tetˈrad or tetradˈic adjective

tetradactyl /-dakˈtil/ adjective (Gr daktylos digit; zoology)

  1. Four-fingered
  2. Four-toed
noun

A four-toed animal

tetradacˈtylous adjective

Having four fingers or toes

tetradacˈtyly noun

The condition of being tetradactylous

tetˈradite noun

  1. A person who attaches mystic properties to the number four
  2. A believer in a godhead of four persons

tetˈradrachm /-dram/ noun

An ancient Greek coin worth four drachmas

tetradymite /ti-tradˈi-mīt/ noun

(Gr tetradymos fourfold) a grey metallic mineral, an ore of tellurium, Bi2Te2S

Tetradynamia /-di-nāˈmi-ə/ plural noun

(in Linnaeus's system) a class corresponding to the Cruciferae

tetradynamous /-dinˈə-məs/ adjective

(Gr dynamis power) having four long stamens in pairs and two short, as in the Cruciferae

tetraethyl /-ēthˈīl, -eˈthil/ adjective

Having four ethyl groups, as tetraethyl lead or lead tetraethyl, Pb(C2H5)4, a compound formerly added to petrol as an antiknock agent

tetrafluoroethˈylene noun

A dense colourless gas that is polymerized to make polytetrafluoroethylene

tetˈragon /-gən, -gon/ noun

(see -gon) a plane figure of four angles and four sides

tetragonal /-ragˈə-nəl/ adjective

  1. Having the form of a tetragon
  2. Referable to three axes at right angles, two of them equal (crystallography)

tetragˈonally adverb

tetragˈonous adjective (botany)

With four angles and convex faces

tetˈragram /-gram/ noun

  1. (Gr gramma a letter) a word or inscription of four letters
  2. (also with cap) the tetragrammaton
  3. A (complete) quadrilateral (geometry)

tetragrammˈaton noun

  1. (also with cap) vocalized as the name YaHWeH, JeHoVaH, etc, as written with four Hebrew letters, regarded as a mystic symbol
  2. Any other sacred word of four letters, as the Latin Deus

Tetragynia /-jinˈi-ə/ plural noun

(see gyn-) (in the Linnaean system) an order of plants (in various classes) with four pistils

tetragynˈian or tetragynous /-rajˈi-nəs/ adjective

tetrahēˈdral adjective

Of, relating to, like or in the form of a tetrahedron

tetrahēˈdrally adverb

tetrahēˈdrite noun

Grey copper ore, sulphide of copper and antimony often occurring in tetrahedral crystals

tetrahedron /-hēˈdrən/ noun (pl tetrahēˈdrons or tetrahēdra /-drə/)

  1. (Gr hedrā a base) a solid figure or body with four plane faces
  2. (in full, regular tetrahedron) a tetrahedron whose surfaces are equilateral triangles

tetrahydrocannˈabinol noun

The main intoxicant substance in marijuana

tetrahydrofōˈlate noun

Folic acid, vitamin B7

tetrahydrogestrinone /-jestˈri-nōn/ noun

A synthetic steroid, illegally used as a performance-enhancing drug by some athletes (abbrev THG)

tetrakishexahēˈdron noun

(Gr tetrakis four times) a figure formed by erecting equal pyramids on all the faces of a cube

tetralˈogy noun

  1. (Gr tetralogiā) (in ancient Greece) a group of four dramas, usu three tragic and one satyric
  2. Any series of four related dramatic or operatic works or stories

tetramˈeral adjective

Four-parted

tetramˈerism noun

Division into four parts

tetramˈerous adjective

(Gr meros part) having four parts, or parts in fours

tetrameter /ti-tramˈi-tər/ noun

(Gr metron measure) a line of a verse of four measures (dipodies or feet)

Tetˈramorph noun

A pictorial representation of the symbolic attributes of the four evangelists combined in a single figure

tetramorˈphic adjective

(see morphic) having four forms

Tetranˈdria plural noun

(in Linnaeus's classification) a class of plants with four stamens

tetranˈdrian adjective

tetranˈdrous adjective

(Gr anēr, andros man; in the sense of male) having four stamens

tetrapla /tetˈrə-plə/ noun

(Gr neuter pl of tetraploos fourfold) an edition of four parallel texts, esp Origen's of the Old Testament

tetraplēˈgia noun

Quadriplegia

tetraplēˈgic adjective

tetraploid /tetˈrə-ploid/ adjective

(Gr tetraploos fourfold, and eidos form) of cells, nuclei or organisms, having four times the haploid (twice the normal) number of chromosomes

noun

A tetraploid organism, cell or nucleus

tetˈraploidy noun

The condition of being tetraploid

tetˈrapod /-pod/ noun

  1. (Gr tetrapous four-footed, from pous, podos foot) a four-footed animal
  2. Any vertebrate above the fishes
  3. A reinforced-concrete block laid against a sea wall to break the force of the waves
  4. A structure with four supporting arms at 120º to each other radiating from a central point, three arms supporting the structure at any one time, with the fourth vertical
adjective

(of an animal or structure) having four feet

tetrapodˈic adjective

(of verse) having four metrical feet

tetrapodous /-trapˈ/ adjective

tetrapˈody noun

A group of four metrical feet

tetrapolis /ti-trapˈo-lis/ noun

(Gr polis a city) a group of four towns

tetrapolˈitan adjective

(Tetrapolitan Confession the Confession which the four cities of Strasburg, Constance, Memmingen and Lindau presented to the Diet of Augsburg (11 July 1530), and, properly speaking, the first Confession of the Reformed Church)

tetrapˈteran /-rən/ or tetrapˈterous adjective

(see -pteran, -pterous under ptero-) four-winged

tetraptote /tetˈrap-tōt/ noun

(Gr ptōsis a case) a noun with only four cases

tetrarch /tetˈrärk or tēˈträrk/ noun (Gr archē rule, origin; historical)

  1. Under the Romans, the ruler of the fourth part of a province
  2. A subordinate prince
  3. The commander of a subdivision of a Greek phalanx
  4. One of four joint rulers
adjective (botany; also tetrarchˈical)

Having four xylem strands

tetrarchˈic adjective

tetˈrarchy noun

  1. The office, rank, period of office or jurisdiction of a tetrarch
  2. The fourth part of a province (also tetˈrarchate)
  3. The condition of being tetrarch (botany)

tetrasemic /-sēˈmik/ adjective (Gr sēma a sign; prosody)

Equivalent to four short syllables, as is a dactyl, anapaest or spondee

tetrasporangium /-spə-ranˈji-əm/ noun

The sporangium in which tetraspores are formed

tetˈraspore /-spōr, -spör/ noun

(Gr sporā seed) an asexual spore formed in groups of four in red seaweeds

tetrasporic /-sporˈik/ or tetrasporous /ti-trasˈpə-rəs or tet-rə-spōˈrəs, -spöˈ/ adjective

tetˈrastich /-stik/ noun

(Gr stichos a row) a stanza or set of four lines

tetrastichal /ti-trasˈti-kl/ or tetrastichic /tet-rə-stikˈik/ adjective

Of (the nature of) tetrastichs

tetrasˈtichous adjective (botany)

In four rows

tetˈrastyle /-stīl/ noun

  1. (Gr stȳlos a column) a building or portico with four columns supporting a ceiling in front
  2. A group of four pillars
adjective

Having four columns

tetrasyllabic /-abˈik/ or tetrasyllabˈical adjective

tetrasyllable /-silˈə-bl/ noun

A word of four syllables

tetˈratheism /-thē-izm/ noun

(Gr theos god) the belief in four elements in the Godhead, ie the three persons of the Trinity and a divine essence out of which each of these originates

tetrathlon /te-trathˈlən/ noun

(Gr athlon contest) a four-event sporting contest

tetratomˈic adjective

Having or composed of four atoms to a molecule

tetravalent /ti-travˈə-lənt, tet-rə-vāˈlənt/ noun

Quadrivalent

tetraxon /ti-trakˈson/ noun

(Gr axōn, -onos an axis) a sponge spicule with four axes

tetrode /tetˈrōd/ noun

(Gr hodos a way) a thermionic valve with four electrodes

tetroxˈide noun

An oxide with four atoms of oxygen in the molecule

tetryl /tetˈril/ noun

A yellow crystalline explosive compound used as a detonator
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更新时间：2025/3/24 21:00:31