1. That which consists of two; an element of which the atomic weight is equal to two parts by weight of hydrogen.

Nuttall's Standard dictionary of the English language By Nuttall, P.Austin

• diead,
• dyd,
• deyad,
• dyde,
• syad,
• xyad,
• fyad,
• eyad,
• d6ad,
• dyzd,
• dysd,
• dywd,
• dyqd,
• dyax,
• dyac,
• dyade,
• dyadd,
• tyad,
• deyd,
• deyade

• dyed.

The adjective form of the word "dyad" is "dyadic".

The plural of the "dyad" can be the "dyads".

The singular of the "dyad" can be the "dyad".