The Collaborative International Dictionary
Entosthoblast
Entosthoblast \En*tos"tho*blast\, n. [Gr. 'e`ntosthe from within
+ -blast.] (Biol.)
The granule within the nucleolus or entoblast of a nucleated
cell.
--Agassiz.
Wiktionary
entosthoblast
n. (context biology English) The granule within the nucleolus or entoblast of a nucleated cell.