osmiophobic

os·mi·o·pho·bic

(oz'mē-ō-fō'bik),
Not readily stained with osmic acid.
[osmium + G. phobos, fear]
Farlex Partner Medical Dictionary © Farlex 2012

osmiophobic

(ŏz″mē-ō-fō′bĭk)
Having resistance to the staining material osmium tetroxide.
Medical Dictionary, © 2009 Farlex and Partners