plural of dyad


• D-Days, Dadys

Source: Wiktionary


Dy"ad, n. Etym: [L. dyas, dyadis, the number two. Gr. dyade. See two, and cf. Duad.]

1. Two units treated as one; a couple; a pair.

2. (Chem.)

Definition: An element, atom, or radical having a valence or combining power of two.

Dy"ad, a. (Chem.)

Definition: Having a valence or combining power of two; capable of being substituted for, combined with, or replaced by, two atoms of hydrogen; as, oxygen and calcium are dyad elements. See Valence.

Source: Webster’s Unabridged Dictionary 1913 Edition


Word of the Day

3 February 2023


(verb) cause to continue in a certain state, position, or activity; e.g., ‘keep clean’; “hold in place”; “She always held herself as a lady”; “The students keep me on my toes”

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Coffee Trivia

“Coffee, the favorite drink of the civilized world.” – Thomas Jefferson, third president of the United States

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