Definition of protoblast
1 : a naked cell without a cell wall
2 : a blastomere of the segmenting egg that is the parent cell of a definite part or organ
Start your free trial today and get unlimited access to America's largest dictionary, with:
- More than 250,000 words that aren't in our free dictionary
- Expanded definitions, etymologies, and usage notes
- Advanced search features
- Ad free!
Origin and Etymology of protoblast
International Scientific Vocabulary prot- + -blast; probably originally formed in German
Seen and Heard
What made you want to look up protoblast? Please tell us where you read or heard it (including the quote, if possible).