non-diffusible
Diffusible factors secreted by neurons can direct glial cell migration from a distance.
He wrote a study of the diffusible factor released by the jelly of the egg of the toad Bufo arenarum.
The rat liver cells produce a diffusible activity which inhibits the differentiation of embryonal carcinoma and embryonic stem cells.
Diffusible stimulants and hypodermic injections of strychnine are the usual treatment.

SMART Vocabulary: related words and phrases

Keeping and staying the same
anti-progressive
calcification
calcify
consistency
consistent
continuum
inveteracy
kept
leave well aloneidiom
left
level off
stabilization
stabilize
stably
stay
steadfast
unreformed
wallow
wallow in something
wouldn't have it any other wayidiom