Compositional element of Greek origin for "lung, lung" . 960; 957; 949; 965; 956; 969; 957; ( pneumoon, "lung" ) . See neum- . See also neuma .
It's a prefix that means lung or air. For example Pneumologist is the Doctor who is the specialist in the lungs or airways. A tire is a plastic doughnut full of air. A pneumoarthrography is a plaque taken in a joint where air was injected.
NEUMO Latin prefix meaning lung