intermediate rays
in·ter·me·di·ate rays
those between ultraviolet and x-rays.
Synonym(s): W rays
Farlex Partner Medical Dictionary © Farlex 2012
W rays
An obsolete term of uncertain utility that dignified electromagnetic radiation with wavelengths between ultraviolet (UV) and ionising (X-radiation).Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.