Meaning oftetradin English

Noun

1. a group of four items
   The company organized their products into a tetrad of related categories.
2. aligned sister chromatids in meiosis
   In meiosis, the tetrad is formed by the alignment of sister chromatids.
3. four haploid pollen grains in tetrahedral formation
   The tetrad of pollen grains is a unique structure found in some plant species.
4. a four-note chord; musical term
   A tetrad chord in music is composed of four distinct notes played simultaneously.