rotator

Nghĩa (Tiếng Anh)

1. One who or that which rotates.
2. A muscle by which a joint can be rotated.
3. A revolving reverberatory furnace.
4. (Internet) A banner ad that cycles through multiple advertisements.

Từ đồng nghĩa

axle

gyroscope

rotor

spindle

spinner

positioner

Từ nguyên (Tiếng Anh)

From rotate + -or.