Meaning & Definition of word "Tetra"

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    Tetra

    /ˈtɛtrə/

    noun:

    • 1. A prefix meaning four.
      • Example: The tetrahedron is a polyhedron with four faces.
    • 2. Any of a genus of small freshwater fish from Central and South America, popular in aquariums.
      • Example: Neon tetras are known for their vibrant colors and are a favorite among aquarists.
    • 3. A term used in chemistry to denote a compound containing four equivalent parts.
      • Example: Tetraethyllead was once used as an additive in gasoline.

    adjective:

    • 1. Denoting a molecule containing four of a specified type of atom.
      • Example: The tetra-amine complex has four nitrogen atoms coordinated to a central metal.
    • 2. Relating to a four-sided figure or structure.
      • Example: The tetra structure of the crystal was discovered during the analysis.

    Etymology

    From Greek 'tetra', meaning 'four'.

    Common Phrases and Expressions

    tetra pack:

    A type of container for liquids, usually made from paperboard.

    tetrahedron:

    A solid shape with four triangular faces.

    Related Words

    tetrachloride:

    A chemical compound containing four chlorine atoms.

    tetrameter:

    A line of verse consisting of four metrical feet.

    Slang Meanings of tetra

    Meaning: Referring to something that comes in fours.

    Example Sentence: That group of friends is a total tetra.

    Meaning: Used to describe a four-part harmony in music.

    Example Sentence: The band played a tetra arrangement that sounded amazing.