# dyadic

> English word · Adjective · IPA /daɪˈæ.dɪk/ · frequency rank #78,558

## Definitions
1. Pertaining to a dyad, the number two; of two parts or elements.
2. Pertaining to a dyad, the number two; of two parts or elements.
3. Pertaining to the physical sex of a person who is exactly male or female in genetics, anatomy and hormone levels; not intersex.

## Etymology
From dyad + -ic. The mathematics sense was coined by American scientist Josiah Willard Gibbs in 1884 in the second half of his book Elements of Vector Analysis.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/dyadic