Mass action may refer to:
- Law of mass action, in chemistry, a postulate of reactions
- Mass action law (electronics), in semiconductor electronics, a relationship between intrinsic and doped carrier concentrations
- Mass action (sociology), in sociology, a term for situations in which a large number of people behave simultaneously in similar ways individually and without coordination
- Mass Action Principle (neuroscience), in neuroscience, the belief that memory and learning are distributed and can't be isolated within any one area of the brain
- Mass tort, or mass action, in law, which is when plaintiffs form a group to sue a defendant (for similar alleged harms)
Famous quotes containing the words mass and/or action:
“The North has no interest in the particular Negro, but talks of justice for the whole. The South has not interest, and pretends none, in the mass of Negroes but is very much concerned about the individual.”
—Zora Neale Hurston (1891–1960)
“The moment we choose to love we begin to move against domination, against oppression. The moment we choose to love we begin to move towards freedom, to act in ways that liberate ourselves and others. That action is the testimony of love as the practice of freedom.”
—bell hooks (b. c. 1955)
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