quadrivalent (not comparable)
(chemistry) Having a valence of four
(of a vaccine) Protecting against four different (usually flu) viruses.
(graph theory) Said of a graph: that all of its vertices have degree four.
• tetravalent
quadrivalent (plural quadrivalents)
(genetics) Any quadrivalent chromosome
Source: Wiktionary
Quad*riv"a*lent, a. Etym: [Quadri- + L. valens, -entis, p. pr. See Valence.] (Chem.)
Definition: Having a valence of four; capable of combining with, being replaced by, or compared with, four monad atoms; tetravalent; -- said of certain atoms and radicals; thus, carbon and silicon are quadrivalent elements.
Source: Webster’s Unabridged Dictionary 1913 Edition
28 November 2024
(noun) the fusion of originally different inflected forms (resulting in a reduction in the use of inflections)
The Boston Tea Party helped popularize coffee in America. The hefty tea tax imposed on the colonies in 1773 resulted in America switching from tea to coffee. In the lead up to the Revolutionary War, it became patriotic to sip java instead of tea. The Civil War made the drink more pervasive. Coffee helped energize tired troops, and drinking it became an expression of freedom.
