| 释义 |
valency
va·len·cy V0010200 (vā′lən-sē)n. Variant of valence.valency (ˈveɪlənsɪ) or valencen, pl -cies or -ces1. (Chemistry) chem a property of atoms or groups, equal to the number of atoms of hydrogen that the atom or group could combine with or displace in forming compounds2. (Linguistics) linguistics the number of satellite noun phrases with which a verb combines: the English verb 'give' takes a subject and two objects, so it has a valency of three. 3. (Biochemistry) immunol a. the number of antigen-binding sites on an antibody moleculeb. the number of antigen-binding sites with which an antigen can combine[C19: from Latin valentia strength, from valēre to be strong]va•lence (ˈveɪ ləns) also valency
n. 1. a. the quality that determines the number of atoms or groups with which any single atom or group will unite chemically. b. the relative combining capacity of an atom or group compared with that of the standard hydrogen atom. 2. the number of binding sites on a molecule, as an antibody or antigen. [1865–70; < Latin valentia strength, worth =valent-, s. of valēns, present participle of valēre to be strong + -ia n. suffix; see -ence] Va•lence (væˈlɑ̃s)
n. a city in SE France. 70,307. valencyThe number of electrons required by an atom to form a stable molecule or radical.Thesaurus| Noun | 1. | valency - the phenomenon of forming chemical bondschemical phenomenon - any natural phenomenon involving chemistry (as changes to atoms or molecules) | | 2. | valency - (biology) a relative capacity to unite or react or interact as with antigens or a biological substratevalencepower, powerfulness - possession of controlling influence; "the deterrent power of nuclear weapons"; "the power of his love saved her"; "his powerfulness was concealed by a gentle facade"biological science, biology - the science that studies living organisms | | 3. | valency - (chemistry) a property of atoms or radicals; their combining power given in terms of the number of hydrogen atoms (or the equivalent)valencecovalence, covalency - valence characterized by the sharing of electrons in a chemical compound; the number of pairs of electrons an atom can sharepower, powerfulness - possession of controlling influence; "the deterrent power of nuclear weapons"; "the power of his love saved her"; "his powerfulness was concealed by a gentle facade"chemical science, chemistry - the science of matter; the branch of the natural sciences dealing with the composition of substances and their properties and reactions |
TranslationsValenzWertigkeitвалентностьvalency
valency (esp US and Canadian), valence1. Chem a property of atoms or groups, equal to the number of atoms of hydrogen that the atom or group could combine with or displace in forming compounds 2. Immunola. the number of antigen-binding sites on an antibody molecule b. the number of antigen-binding sites with which an antigen can combine valency
va·lence , valency (vā'lĕns, -len-sē), The combining power of one atom of an element (or a radical), that of the hydrogen atom being the unit of comparison, determined by the number of electrons in the outer shell of the atom (v. electrons); for example, in HCl, chlorine is monovalent; in H2O, oxygen is bivalent; in NH3, nitrogen is trivalent. [L. valentia, strength] valency (vā′lən-sē)n. Variant of valence.va·lence , valency (vā'lĕns, -ē) The combining power of one atom of an element (or a radical), that of the hydrogen atom being the unit of comparison, determined by the number of electrons in the outer shell of the atom (v. electrons); e.g., in HCl, chlorine is monovalent; in H2O, oxygen is bivalent; in NH3, nitrogen is trivalent. [L. valentia, strength]va·lence , valency (vā'lĕns, -sē) The combining power of one atom of an element (or a radical), that of the hydrogen atom being the unit of comparison, determined by the number of electrons in the outer shell of the atom (v. electrons). [L. valentia, strength]valency
Synonyms for valencynoun the phenomenon of forming chemical bondsRelated Wordsnoun (biology) a relative capacity to unite or react or interact as with antigens or a biological substrateSynonymsRelated Words- power
- powerfulness
- biological science
- biology
noun (chemistry) a property of atoms or radicalsSynonymsRelated Words- covalence
- covalency
- power
- powerfulness
- chemical science
- chemistry
|