名词

1. 樟脑丸;卫生球
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. 把(计划、设备等)束之高阁，暂停
If someone in authority mothballs a plan, factory, or piece of equipment, they decide to stop developing or using it, perhaps temporarily.

1. a small sphere of camphor or naphthalene used to keep moths away from stored clothing

Synonym: camphor ball