What does Pyrophorus mean?

Definitions for Pyrophorus

This dictionary definitions page includes all the possible meanings, example usage and translations of the word Pyrophorus.

Princeton's WordNet

  1. Pyrophorus, genus Pyrophorusnoun

    tropical click beetles


  1. pyrophorusnoun

    a substance capable of taking fire spontaneously on exposure to the air, especially in a finely divided state

  2. Pyrophorusnoun

    a taxonomic genus, within family Lampyridae - the fireflies

  3. Etymology: πῦρ + φέρω.


  1. pyrophorus

    A substance is pyrophoric (from Greek: πυροφόρος, pyrophoros, 'fire-bearing') if it ignites spontaneously in air at or below 54 °C (129 °F) (for gases) or within 5 minutes after coming into contact with air (for liquids and solids). Examples are organolithium compounds and triethylborane. Pyrophoric materials are often water-reactive as well and will ignite when they contact water or humid air. They can be handled safely in atmospheres of argon or (with a few exceptions) nitrogen. Class D fire extinguishers are designated for use in fires involving pyrophoric materials. A related concept is hypergolicity, in which two compounds spontaneously ignite when mixed.


  1. pyrophorus

    Pyrophorus refers to any substance, material, or compound that spontaneously ignites or catches fire in contact with air or produces sparks when struck or rubbed. It comes from the Greek word "pyrophoros" meaning "fire-bearing". Examples of pyrophoric materials include certain metals, alloys, and non-metals. These substances require special handling due to their extreme reactivity with air.

Webster Dictionary

  1. Pyrophorusnoun

    any one of several substances or mixtures which phosphoresce or ignite spontaneously on exposure to air, as a heated mixture of alum, potash, and charcoal, or a mixture of charcoal and finely divided lead

  2. Etymology: [NL. See Pyrophorous.]


  1. Pyrophorus

    The term pyrophorus refers to a substance which spontaneously inflames on contact with the air; one of yellow color and blue fluorescence. In early use, the term was applied specifically to Homberg's pyrophorus, a substance made by heating alum with lampblack, flour, starch, or sugar.

Chambers 20th Century Dictionary

  1. Pyrophorus

    pī-rof′ō-rus, n. a substance which takes fire on exposure to air: a genus of elaterid beetles.—n. Py′rophōre, any composition which takes fire on exposure to air or water.—adjs. Pyrophor′ic, Pyroph′orous. [Gr. pyr, fire, pherein, to carry.]

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  1. Chaldean Numerology

    The numerical value of Pyrophorus in Chaldean Numerology is: 4

  2. Pythagorean Numerology

    The numerical value of Pyrophorus in Pythagorean Numerology is: 9


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"Pyrophorus." Definitions.net. STANDS4 LLC, 2023. Web. 29 Sep. 2023. <https://www.definitions.net/definition/Pyrophorus>.

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    diverge from the expected
    • A. suffuse
    • B. flub
    • C. aberrate
    • D. descant

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