Meaning
Any of an early generation of synthetic polybutadiene rubbers produced using sodium as a catalyst.
Etymology
Origin: Unknown
From butadiene and Na (“chemical symbol for sodium”).
Synonyms & Antonyms
Synonyms
NYT Puzzle Appearances
No published puzzle dates on file for this word yet. It is part of the official NYT Spelling Bee word list for 2019, 2022, 2024, 2026.