The knee is the elbow is not
multiaxial movement
Carpal bones are gliding joints, so movement between them is multiaxial in that they can do every motion except pivot, only to a slight degree.
Ball-and-Socket Joints
Shoulder and hip joint are synovial, ball and socket (spheroidal) joints. they are multiaxial and have three degrees of freedom
There are several ways in which joints are classified. The main classifications are in regard to how much they move. The classical terms are Synarthrotic, Amphiarthrotic, and Diarthrotic, where the Diarthrotic are the most movable. The diarthrotic joints are also called freely moving, or synovial joints. These can be classified by how they move. There are monoaxial joints, which move in one plane, or around a central axis. Then there are biaxial joints that move in two planes of movement. And, finally, there are the multiaxial (sometimes called triaxial) joints that move in more than two planes. The monoaxial joints can be subdivided into hinge and pivot joints. The biaxial joints can be subdivided into ellipsoidal and saddle. And, the multiaxial joints can be subdivided into gliding and ball-and-socket joints.
Ball-and-socket joints are said to be multiaxial in their range of movements as they can move in a number of planes as well as perform rotation and circumduction.
A multiaxial joint is a type of synovial joint. The x-axial refers to how many planes of the movement the specific joint provides, so in the case of a multiaxial joint, that means it provides movement in many planes of movement (multiaxial usually refers to three, which can then also be stated as triaxial).
multiaxial system
Multiaxial in medical or common terms means having more than one axis.
Flexion ( is a typical of hinge joint ) bending the knee or elbow
yes