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Catalyst vs Against - What's the difference?

catalyst | against |

As a noun catalyst

is (chemistry) a substance that increases the rate of a chemical reaction without being consumed in the process.

As a preposition against is

a close but separated relationship .

As a conjunction against is

(obsolete) by the time that (something happened); before.

As an adverb against is

in opposition to something.

catalyst

English

Noun

(en noun)
  • (chemistry) A substance that increases the rate of a chemical reaction without being consumed in the process.
  • * 1988 , Biochemistry , 3rd edition, page 177
  • Enzymes, the catalysts of biological systems, are remarkable molecular devices that determine the pattern of chemical transformations.
  • Someone or something that encourages progress or change.
  • Economic development and integration are working as a catalyst for peace.
  • * 1978 , Ernest George Schwiebert, Trout , Volume 2
  • It was a morning baptized by my first cup of coffee, freshly brewed over a gravel-bar fire, while they celebrated with the stronger catalyst of sour-mash whiskey in their fishing-vest cups.
  • * 2004 , Michael B. Oren, Six Days of War: June 1967 and the making of the modern Middle East , page 76
  • Israel's fear for the reactor—rather than Egypt's of it—was the greater catalyst for war.
  • * 2006 , The Freedom Writers, with Erin Gruwell, The Freedom Writers Diary: How a Teacher and 150 Teens Used Writing to Change Themselves and the World Around Them , Diary 74
  • Rosa Parks was a true catalyst' for change and she was only one person. Hearing about Rosa Parks and her protest showed me that there is hope for me and all the students in Ms. G's classes to truly be ' catalysts for change.
  • * '>citation
  • (literature) An inciting incident which that sets the successive conflict into motion.
  • (automotive) A catalytic converter.
  • Synonyms

    * (Someone or something that encourages progress or change) stimulus, straw that stirs the drink

    Antonyms

    * (something that encourages change) inhibitor * (something that enhances or accelerates) dampener

    Derived terms

    * catalyse, catalyze * catalysis * catalytic

    See also

    * enzyme

    against

    English

    Alternative forms

    * againest (obsolete), agaynst (obsolete), agaynest (obsolete) * agenst (obsolete), agenest (obsolete), ageinst (obsolete), ageinest (qualifier), ageynst (obsolete), ageynest (qualifier), agin (colloquial or humorous)

    Preposition

    (English prepositions)
  • A close but separated relationship.
  • #In a contrary direction to.
  • #:
  • #Close to.(rfex)
  • #:
  • #*
  • , title=(The Celebrity), chapter=5 , passage=We expressed our readiness, and in ten minutes were in the station wagon, rolling rapidly down the long drive, for it was then after nine.
  • #In front of; before a background.
  • #:
  • #In physical contact with.
  • #:
  • #In physical opposition to, or in collision with.
  • #:
  • #*{{quote-book, year=1922, author=(Michael Arlen), title= “Piracy”: A Romantic Chronicle of These Days, chapter=3/19/2
  • , passage=Ivor had acquired more than a mile of fishing rights with the house?; he was not at all a good fisherman, but one must do something?; one generally, however, banged a ball with a squash-racket against a wall.}}
  • A contrasting or competitive relationship.
  • #In contrast and/or comparison with.
  • #:
  • #In competition with, versus.
  • #:
  • #*
  • #*:“[…] it is not fair of you to bring against mankind double weapons ! Dangerous enough you are as woman alone, without bringing to your aid those gifts of mind suited to problems which men have been accustomed to arrogate to themselves.”
  • #*{{quote-news, year=2011, date=September 24, author=Aled Williams, work=BBC Sport
  • , title= Chelsea 4-1 Swansea , passage=The breakthrough came through Torres who, pilloried for his miss against Manchester United a week earlier, scored his second goal of the season.}}
  • #In opposition to.
  • #:
  • #*
  • , title=(The Celebrity), chapter=4 , passage=Mr. Cooke at once began a tirade against the residents of Asquith for permitting a sandy and generally disgraceful condition of the roads. So roundly did he vituperate the inn management in particular, and with such a loud flow of words, that I trembled lest he should be heard on the veranda.}}
  • #*{{quote-magazine, year=2013, month=May-June, author= David Van Tassel], [http://www.americanscientist.org/authors/detail/lee-dehaan Lee DeHaan
  • , title= Wild Plants to the Rescue, volume=101, issue=3, magazine=(American Scientist), passage=Plant breeding is always a numbers game.
  • In exchange for.(rfex)
  • As counterbalance to.(rfex)
  • As a charge on.(rfex)
  • As protection from.
  • :
  • *{{quote-journal, year=1988, date=March 1, author=Caroni, Pico, coauthors=Schwab, Martin E. , title=Antibody against myelin associated inhibitor of neurite growth neutralizes nonpermissive substrate properties of CNS white matter, journal=Neuron citation
  • , passage=Monoclonal antibodies were raised against these proteins: IN-1 and IN-2 bound both to the 35 kd and 250 kd inhibitors and to the surface of differentiated cultured oligodendrocytes.}}
  • (lb) Exposed to.(rfex)
  • In anticipation of; in preparation for (a particular time, event etc.).
  • *, II.11:
  • *:He wrote to a friend of his, that he lived but with browne bread and water, and entreated him to send him a piece of cheese, against the time he was to make a solemne feast.
  • Synonyms

    * (in competition with) versus

    Antonyms

    * for * with

    Conjunction

    (head)
  • (obsolete) By the time that (something happened); before.
  • * , II.ix:
  • Thence she them brought into a stately Hall, / Wherein were many tables faire dispred, / And ready dight with drapets festiuall, / Against the viaundes should be ministred.
  • * 1749 , Henry Fielding, Tom Jones , Folio Society 1973, p. 6:
  • He now gave Mrs Deborah positive orders to take the child to her own bed, and to call up a maid-servant to provide it pap, and other things, against it waked.

    Adverb

    (en adverb)
  • In opposition to something.
  • (gambling) Having a specified likelihood of not winning or happening.
  • Statistics

    *