Movable concrete barriers found on highways are called bearcades.
A porta potty
text box
Origin
In America there is a pie called american pie
The mandible, also called the jaw bone, is the only movable bone in the skull. The lower teeth are rooted into the mandible while the upper teeth are rooted in the two maxillae.
A relay is made up of a coil with an iron core and a movable iron bar. The movable iron bar in a relay is called a switch.
A porta potty
caravan or it can be called a trailer.
Planchette
It is called an armature.
tipi
Solenoid
Attraction?
text box
The UK uses the term MOTORWAY and label them as M1, M2, M3 etc.
So there were a lot of different barriers but the most common one is called a tetrahedron also known as hedgehog.
Slightly movable joints are also called cartilaginous joints. Slightly movable joints are the joints with minor movements, because cartilage is preventing them from moving at a long distance.