tetrads

We have found lemma(root) word of tetrads : tetrad.

Definitions


[ˈtɛtrad], (Noun)

Definitions:
- a group or set of four
(e.g: a tetrad of distinct elements)


Phrases:

Origin:
mid 17th century: from Greek tetras, tetrad- ‘four, a group of four’




definition by Oxford Dictionaries