hamster ball
noun
A transparent plastic sphere in which a hamster or other small pet can run (causing the sphere to roll around) to get exercise.
Origin
1970s; earliest use found in Silver City (New Mexico) Daily Press.
- undercrackers
- undercroft
- undercurrent
- undercut
- underdaks
- underdamp
- under debate
- underdetermination
- underdetermine
- underdeveloped
- underdevelopment
- underdog
- underdone
- underdrawing
- underdress
- underdungers
- undereducated
- underemphasis
- underemphasise
- underemphasize
- underemployed
- underemployment
- under-equipped
- underestimate
- underestimation