Definition of polyvalent in US English:



  • 1Chemistry
    Having a valence of three or more.

    • ‘Because the Born energy is the square function of the charge, the barrier height is expected to be four times larger for divalent ions than for monovalent ions, and orders of magnitude greater for polyvalent ions.’
    • ‘The main physical effect described by this relation is the sensitivity of lipid enrichment to valence, i.e., the increased concentration of polyvalent lipids compared to that of monovalent ones in the adsorption domain.’
    • ‘Covalently linking multiple copies of this peptide together on a flexible polyacrylamide backbone allowed them to construct from this a polyvalent inhibitor about 7500 times more potent than the original peptide.’
    • ‘Peptization is defined as dispersion achieved by changing the composition of the dispersion medium and frequently includes the addition of polyvalent co-ions.’
    • ‘The slow exchange of the central capsule for polymers and polyvalent anions might be of interest for controlled release applications.’
  • 2Medicine
    Having the property of counteracting several related poisons or affording immunity against different strains of a microorganism.

    • ‘There are five types of antivenom for specifically identified bites, and a polyvalent antivenom for use if the snake hasn't been identified.’
    • ‘Scientists in the United States have created a polyvalent inhibitor of the toxin that protects rats for at least one week after they receive huge doses of anthrax toxin.’
    • ‘Patients with cirrhosis should be given a single dose of polyvalent pneumococcal vaccine as protection against infections such as peritonitis and pneumonia.’
    • ‘A study of 227 healthy volunteers demonstrated that daily administration of 100 mg of G115 for 12 weeks enhanced the efficacy of polyvalent influenza vaccine.’
    • ‘Four sets of reagents (CP-I, CP-II, CP-III and CP - IV) comprising latex beads coated with polyvalent immune sera to 17 serotypes of heat resistant CPA were used in the study.’
  • 3Having many different functions, forms, or facets.

    ‘as emotion, love is polyvalent’
    • ‘The multiplication of terms, images and stories in various media is replaced by the work on the creation of a single, boundless, polyvalent mega-medium.’
    • ‘Meskimmon fruitfully posits an embrace of language that is polyvalent, not univocal, and a network of communication operating in context rather than transhistorically.’
    • ‘It was polyvalent, polyphonic, and polymorphously perverse.’
    • ‘Viewed in this way, the Fogg portrait conjures up all the polyvalent meanings of the phrase ‘painting as a woman.’’
    • ‘This meaning is not the only meaning, but polyvalent, historically conditioned and limited.’
    • ‘These are no mere formalist exercises but polyvalent symbols of time, of chaos ordered, of life's sometimes painful cycles endured.’
    • ‘Salons were polyvalent institutions capable of adapting to political and economic conditions, and maintaining their significance.’
    • ‘Freud introduced free association in The Interpretation of Dreams as a method to trigger expansive clusters of signification, often polyvalent and clashing in character, in order to unravel the import of a dream.’
    • ‘Benjamin's scrutiny of Matisse is thus complex, shifting, and polyvalent, while at times even seeming to work against his own claims.’
    • ‘I want members of my church to keep struggling with the polyvalent symbols of cross and flag.’
    • ‘By the end, his serrated anti-riffs are faster, clearer, louder, polyvalent, and virtually indistinguishable from his pre-Carpal recordings.’
    • ‘Furthermore, Irigaray uses this representation of the body to specify a feminine language which is plural, polyvalent, and irreducible to a masculine language based on restrictive notions of unity and identity.’
    • ‘Rather than sticking to your own stable skills, you should be flexible and polyvalent, and you should do this on your own responsibility, autonomously.’
    • ‘They are polyvalent images: the sea suggesting a space to be explored, the possibility of quest and discovery, but also a place of danger, drifting, homelessness and exile.’
    • ‘Most of the local cultures are in themselves multilayered and polyvalent.’
    • ‘In spite of Oiticica's seminal work as a painter, sculptor and installation artist avant la lettre, filmmaking and expanding the limits of cinema were of great interest to his restless and polyvalent mind.’
    • ‘But the World Cup continues to draw its strength from a remarkably portable and polyvalent game that expresses itself vibrantly through the colourful, dramatic expression of national difference.’
    • ‘Law puts its trust in language as the instrument through which polyvalent signs can be reduced to a single truth and deliver both justice and narrative closure.’
    • ‘If we miss this point, we miss understanding the multidimensionality of Duchamp and the polyvalent nature of his work.’
    • ‘The fragmented and polyvalent nature of inshore fisheries makes collection of data on their operations difficult, however; consequently the inshore does not have such a strong voice as the high seas sector.’