Combining forms signifying all, every; as, panorama, pantheism, pantagraph, pantograph. Pan- becomes pam- before b or p, as pamprodactylous. [1913 Webster]
pan-, comb. form 1 all; the whole of.
2 relating to the whole or all the parts of a continent, racial group, religion, etc. (pan-American; pan-African; pan-Hellenic; pan-Anglican).