Monad

//ˈmɒnæd// noun

Definitions

Noun
  1. 1
    One thing, one being, one item.
  2. 2
    (biology) a single-celled microorganism (especially a flagellate protozoan) wordnet
  3. 3
    A group of entities or items treated as one entity.
  4. 4
    a singular metaphysical entity from which material properties are said to derive wordnet
  5. 5
    An ultimate atom, or simple, unextended point; something ultimate and indivisible.

    "Hence Leibnitz, who looked upon things as noumena, after denying them everything like external relation, and therefore also composition or combination, declared that all substances, even the component parts of matter, were simple substances with powers of representation, in one word, monads."

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  1. 6
    (chemistry) an atom having a valence of one wordnet
  2. 7
    A single individual (such as a pollen grain) that is free from others, not united in a group.
  3. 8
    A single-celled organism. (See Monas.) dated
  4. 9
    A monoid object in the category of endofunctors of a fixed category.
  5. 10
    A data type which represents a specific form of computation, along with the operations "return" and "bind".

    "The properties that make the Maybe type a monad are its type constructor Maybe a, our chaining function (>>?), and the injector function Just."

Etymology

From Latin monas (“unit”) (from Ancient Greek μονάς (monás), from μόνος (mónos), from Proto-Indo-European *men-). By surface analysis, mono- + -ad.

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