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  2. Water (classical element) - Wikipedia

    en.wikipedia.org/wiki/Water_(classical_element)

    According to Aristotle, water is both cold and wet and occupies a place between air and earth among the elemental spheres. [2] Alchemical symbol for water. In ancient Greek medicine, each of the four humours became associated with an element. Phlegm was the humor identified with water, since

  3. Classical element - Wikipedia

    en.wikipedia.org/wiki/Classical_element

    Plato (428/423 – 348/347 BC) seems to have been the first to use the term "element (στοιχεῖον, stoicheîon)" in reference to air, fire, earth, and water. [13] The ancient Greek word for element, stoicheion (from stoicheo, "to line up") meant "smallest division (of a sun-dial), a syllable", as the composing unit of an alphabet it ...

  4. Alchemical symbol - Wikipedia

    en.wikipedia.org/wiki/Alchemical_symbol

    Alchemical symbols were used to denote chemical elements and compounds, ... Water 🜄 Seven ... Many of the 'symbols' are simply abbreviations of the Greek word or ...

  5. Mu (letter) - Wikipedia

    en.wikipedia.org/wiki/Mu_(letter)

    In the system of Greek numerals it has a value of 40. [3] Mu was derived from the Egyptian hieroglyphic symbol for water, which had been simplified by the Phoenicians and named after their word for water, to become 𐤌 img (mem). Letters that derive from mu include the Roman M and the Cyrillic М, though the lowercase resembles a small Latin U ...

  6. Greek letters used in mathematics, science, and engineering

    en.wikipedia.org/wiki/Greek_letters_used_in...

    Greek letters are used in mathematics, science, engineering, and other areas where mathematical notation is used as symbols for constants, special functions, and also conventionally for variables representing certain quantities. In these contexts, the capital letters and the small letters represent distinct and unrelated entities.

  7. Psi (Greek) - Wikipedia

    en.wikipedia.org/wiki/Psi_(Greek)

    The Greek alphabet on a black-figure pottery vessel, with an archaic chickenfoot-shaped psi. Psi / ˈ ( p ) s aɪ , ˈ ( p ) s iː / (P)SY , (P)SEE [ 1 ] (uppercase Ψ , lowercase ψ or 𝛙 ; Greek : ψι psi [ˈpsi] ) is the twenty-third and penultimate letter of the Greek alphabet and is associated with a numeric value of 700.

  8. Water - Wikipedia

    en.wikipedia.org/wiki/Water

    Water is an inorganic compound with the chemical formula H 2 O. ... with Greek ύδωρ (ýdor; from ... Hazard symbol for non-potable water.

  9. List of occult symbols - Wikipedia

    en.wikipedia.org/wiki/List_of_occult_symbols

    A serpent or dragon consuming its own tail, it is a symbol of infinity, unity, and the cycle of death and rebirth. Pentacle: Mesopotamia: An ancient symbol of a unicursal five-pointed star circumscribed by a circle with many meanings, including but not limited to, the five wounds of Christ and the five elements (earth, fire, water, air, and soul).