The sideways movement of a limb is called abduction or adduction. Abduction is moving a limb away from the body's midline, while adduction is bringing a limb closer to the body's midline.
The sideways movement of air is called lateral movement or horizontal airflow.
If by movement you mean tilting it is called roll. There is no name for a boat simply moving sideways.
extension
abduction
circumduction
Abduction is the term used to describe the movement of a limb away from the body.
Adduction movement occurs when a muscle moves a limb towards the midline of the body. This movement decreases the angle between the limb and the body.
An aftermovement is the movement of a limb following the contraction of a muscle.
circumduction
The circular movement at the far end of a limb is called circumduction. This movement involves a combination of flexion, extension, abduction, and adduction in a circular pattern. It allows for a wide range of motion in the joint.
Epicenter
Horizontal sideways movements.