That's called 'centripetal acceleration'. It's the result of the centripetal force
acting on the object on the curved path.

That means acceleration towards the center. For example, this happens any time something moves in a circle.

Centripetal acceleration is acceleration towards the center of the movement.

The body which is subjected to centripetal acceleration undergoes uniform circular motion.

If an object follows a circular path, it must have a centripetal force on it to keep it moving in a circle. Centripetal means "toward the center of the circle". The force causes Centripetal acceleration toward the center witch is along the radius of the circular path.

Tangential acceleration occurs at a Tangent to the circular path and is always perpendicular to the centripetal acceleration. Always perpendicular to the radius of the circle.