polyvalent adjective (CHEMISTRY)
used to refer to atoms or molecules that have a valency of three or more: When the metal is polyvalent it may be attached to another group. More examples. Each polyvalent atom in a molecule does not necessarily act on the maximum number of other atoms.
What does polyvalent mean in CHEMISTRY?
Definition of polyvalent
1 : having a chemical valence greater usually than two. 2 : effective against, sensitive toward, or counteracting more than one toxin, microorganism, or antigen polyvalent vaccines.
Is carbon a polyvalent atom?
Polyvalent element is a molecule which having more than one valence, for example oxygen is a divalent in H2O, nitrogen is a trivalent in NH3, carbon is a tetravalent in methane (CH4).
What is polyvalent example?
Containing antigens from more than one strain of a microorganism or virus. Used of a vaccine or serum. adjective. Having more than one valence. Iron and manganese are polyvalent elements.
What is polyvalent person?
British English: versatile /ˈvɜːsəˌtaɪl/ ADJECTIVE. If you say that a person is versatile, you approve of them because they have many different skills.
What is the difference between a polyvalent element and a polyatomic ion?
The key difference between polyvalent element and polyatomic ion is that polyvalent elements have more than one valency whereas polyatomic ions have more than one atom that are covalently bonded to each other. The prefix “poly-“ refers to “many”.
What is the difference between polyvalent and multivalent?
In context|chemistry|lang=en terms the difference between multivalent and polyvalent. is that multivalent is (chemistry) having more than one valency or having a valency greater than 3; polyvalent while polyvalent is (chemistry) having multiple valencies.
What are polyvalent ions?
Polyvalent ion refers to when, the atom in an ion have a valency of more than one. i.e when the valency of the ion is greater than one. For example: O2− ion is a polyvalent ion as it has a valency of more than one, but it is a monoatomic ion.
What is polyvalent antigen?
Polyvalence or polyvalent may refer to: Polyvalency (chemistry), chemical species, generally atoms or molecules, which exhibit more than one chemical valence. Polyvalence (music), the musical use of more than one key simultaneously. Polyvalent antibody, a group of antibodies that have affinity for various antigens.
What is polyvalent functional group?
the functional group which can bind more than two bonds or at least two bonds are called polyvalent functional group. BIVALENT FUNCTIONAL GROUP – binding with two bonds as in oxygen.
What is valence of hydrogen?
Hydrogen has a valence of 1, because one more electron will give a hydrogen atom an inert-gas structure. Carbon can form four bonds, because four more electrons give it the neon electronic structure.
Who discovered valency?
The first great step in the development of a satisfactory explanation of valence and chemical combination was made by the American chemist G.N. Lewis (1916) with the identification of the chemical bond of organic compounds with a pair of electrons held jointly by two atoms and serving to hold them together.
What does polyvalent mean when talking about a vaccine?
Definition of polyvalent vaccine
n. A vaccine prepared from cultures of two or more strains of the same species of microorganism or virus.
Who is a polyvalent teacher?
It supports the operation of the principle that students of school age benefit by the presence of a polyvalent teacher, who guides and inspires children to acquire knowledge and develop their personalities in accordance with modern scientific data.
What is polyvalent vaccine?
An polyvalent vaccine used to prevent infection by the bacterium Streptococcus pneumoniae. Pneumococcal polyvalent vaccine contains higly purified capsular antigens from the 23 most prevalent or invasive pneumococcal types of Streptococcus pneumoniae to ensure cross-protection.
Can a person be polyvalent?
If you say that a person is versatile, you approve of them because they have many different skills. one of the game’s most versatile athletes.
What does polyvalent school mean?
The polyvalent vocational schools provide professional training in a large number of qualifications, from worker to technician, providing at the same time high school subjects.
What is the meaning Polysemous?
Definition of polysemous
: having multiple meanings. Other Words from polysemous Example Sentences Learn More About polysemous.
