Definition, Meaning & Synonyms

tetr

Prefix
/ˈtɛtər/
Definition
A prefix used in language to denote ‘four’ or ‘fourfold’.
Examples
  • tetrahedron – a three-dimensional shape with four triangular faces.
  • tetracycline – an antibiotic that means it has a four-ring structure.
  • tetravalent – referring to elements that have a valence of four.
Meaning
The term ‘tetr’ comes from the Greek word ‘tetra’, meaning four. It is commonly used in various scientific fields, such as mathematics and biology, to indicate a grouping of four.
Synonyms
  • quad
  • quaternary
  • fourfold