Word forms: mothballs
1. countable noun A mothball is a small ball made of a special chemical, which you can put among clothes or blankets in order to keep moths away. 2. verb If someone in authority mothballs a plan, factory, or piece of equipment, they decide to stop developing or using it, perhaps temporarily. [journalism] [V n] ⇒ ...the decision to mothball the Bataan Nuclear Power Plant, for safety and political reasons. [V n] ⇒ The shuttle programme has now been mothballed to save money.
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