Also found in: Medical.


The nutritive yolk of a meroblastic egg.

par′a·blas′tic adj.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


(Biology) the yolk of an egg, such as a hen's egg, that undergoes meroblastic cleavage
[C19: from para-1 + -blast]
ˌparaˈblastic adj
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
References in periodicals archive ?
All the samples were dehydrated in ascending grades of ethanol, cleared in butanol and embedded in parablast. Sections of 5-6 um thick sections were stained with haematoxylin and eosin (HandE) staining for general histological studies, and Masson's Trichrome stain for collagen fibres.