physico-

from The Collaborative International Dictionary of English v.0.48

Physico- \Phys"i*co-\ (f[i^]z"[i^]*k[-o]-). [Fr. Gr. fysiko`s
   natural, physical.]
   A combining form, denoting relation to, or dependence upon,
   natural causes, or the science of physics.
   [1913 Webster]