In mononyms, Gibbsian (TR:19) refers to the work, theories, equations, models, systems, applications, ideas, and derived philosophical applications of American engineer and physiochemical mathematician Willard Gibbs (see: Gibbs), in particular his 1876 On the Equilibrium of Heterogeneous Substances; a Gibbsian, in some sense, is a more refined and generalized Clausiusian, so to say; both of which, so to say, are modern "Lagrangian" (see: Joseph Lagrange) conceptualized models of the universe, pure and applied; all of which are "Newtonian" (see: Isaac Newton) in foundation.

Quotes
The following are related quotes:

Gibbs’ thermodynamic papers—difficult, abstract, and buried in an obscure journal on the fringes of European scientific awareness-remained for a time virtually unknown except among a small circle of admirers. Fortunately, the latter included physicist James Maxwell, who advocated effectively for Gibbs’ insights and methods. Major centers of Gibbsian influence began to appear in Germany, Holland, and elsewhere, as many Nobel Prize winning careers were launched from a passing remark or footnote in Gibbs’ monumental masterpiece.”
Frank Weinhold (2009), Classical and Geometrical Theory of Chemical and Phase Thermodynamics [1]

See also
Gibbsian school
Gibbsian thermodynamics

References
1. Weinhold, Frank. (2009). Classical and Geometrical Theory of Chemical and Phase Thermodynamics (Gibbsian, pg. 151). Wiley.

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