d 2 i 1 a 1 z 10 o 1 n 1 i 1 u 1 m 3
9 letters · 21 points in Scrabble
Meaning
noun the univalent cation R-N:N- (where R is an aromatic hydrocarbon); found in salts that are used in manufacturing azo dyes
originBlend of diazo + ammonium.
Etymology from Wiktionary, CC BY-SA 3.0