antagonist
Biology

antagonist



Term: antagonist
Literally meaning: ?against fighter?
Origin: Anc Greek
????????????/antagonistis(= competitor, opponent, enemy) >????-/anti- (=prefix meaning opposed to, against, instead) ?????????/agonistis(=fighter, combatant) > ????/agon(=contest, fight)
Coined/History 
(?)
Definition
  1. (pharmacology) Antagonist is a chemical substance  that  binds to a neuronal receptor inhibiting the sugnal triggered by an agonist (stimulator of receptor). E.g heroin overdose is usually treated with an opiod anatagonist, such as naloxone
  2. (microbiology) An antagonist is an organism that competes  another organism by the production of antibiotis or lytic enzymes.  




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- Antimony (sb)
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- Hydrolase
Term: hydrolaseLiterally meaning: ?enzyme of breaking down water?Origin: Anc Greek????/hydor(=water)+-???/-asy(=-ase) enzyme suffix added to the name of the substrate that the enzyme  hydrolyzes eg proteinase for protein or lipase for lipids >???-/dia-(=prefix...

- Xenoantigen
Term: xenoantigen Literally meaning: ?antigen from  foreigners? Origin: Anc Greek?????/xenos(=foreign, stranger)+ ????-/anti- (=prefix meaning opposed to, against, instead) + ?????/geno(=produce, give birth to) Coined/History(?)DefinitionXenoantigen...

- Antigen
Term: antigen Literally meaning: ? antibody generator?Origin: Anc Greek????-/anti- (=prefix meaning opposed to, against, instead) + ?????/geno(=produce, give birth to)Coined/HistoryBy Hungarian physician and microbiologist Laszlo Detre (1874-1939)...



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