It's a prefix that is often used in scientific names to indicate something that has four parts or aspects. For example:
* Tetrahedron: A geometric shape with four faces
* Tetrameter: A line of poetry with four metrical feet
* Tetrad: A group of four
It's a prefix that is often used in scientific names to indicate something that has four parts or aspects. For example:
* Tetrahedron: A geometric shape with four faces
* Tetrameter: A line of poetry with four metrical feet
* Tetrad: A group of four