- The ride on the roller coaster dizzied us.
- May I borrow your roller skates?
- Clattering along on roller skates.
- A road roller is used in making and repairing roads.
- A steel tube or wooden roller on which the warp is wound in a loom.
differential gap differential Differential switched emitter follower differential gene expression screening differential pressure type level gauge differential-interference microscope differential coefficient rectification differential pulse position modulation differential binary phase shift keying differential Doppler frequency-shift differential number distribution curve differential pulse stripping vohammetry