Meaning
A small ball of chemical pesticide (originally camphor and now typically naphthalene or paradichlorobenzene) and deodorant placed in or around clothing and other articles to deter moth larvae which may damage them.
Etymology
Origin: Unknown
The noun is derived from moth + ball. The verb is derived from the noun.
Synonyms & Antonyms
Antonyms
demothballunmothball
NYT Puzzle Appearances
Accepted in 2 recorded puzzles, including a pangram: