plastin
noun
plas·tin
ˈplastə̇n
plural -s
1
: an acidophilic component of protoplasm more or less coextensive with the presumed highly polymerized protein framework of cytoplasm and nucleus
2
: the substance of the true nucleolus
Word History
Etymology
International Scientific Vocabulary plast- (from Greek plastos) + -in; probably originally formed in German