Monad

Monad may refer to:

Philosophy

Monad (philosophy) a term meaning "unit" used variously by ancient philosophers from the Pythagoreans to Plato, Aristotle, and Plotinus to signify a variety of entities from a genus to God.
Monism, the concept of "one essence" in the metaphysical and theological theory
Monad (Gnosticism), the most primal aspect of God in Gnosticism
Monadology, a book of philosophy by Gottfried Leibniz in which monads are a basic unit of perceptual reality
Monadologia Physica by Immanuel Kant
The Cup or Monad, a text in the Corpus Hermetica

Monad (category theory), a construction in category theory
Monad (functional programming), functional programming constructs that capture various notions of computation
Monad (non-standard analysis), describes the set of points infinitely close to a given point.

Monad (music), a single note, in contradistinction to a dyad, triad, tetrad, etc.

Windows PowerShell, a command line interface for Microsoft Windows code-named "Monad"
Xmonad, a window manager for the X Window System
John Monad, title character of the television series John from Cincinnati
Monad Proxy, a character in the anime series Ergo Proxy
In the novel The World Inside by Robert Silverberg, almost a hundred billion humans live in megastructure skyscrapers called monads

The Monad is the combination of the last two principles in man, the 6th and the 7th. Properly speaking, the term "individual monad" applies to the dual soul (Atmi-Buddhi), not to its highest spiritual vivifying principle.