Meanings
Synonyms & antonyms
nounearly stage of an embryo produced by cleavage of an ovum; a liquid-filled sphere whose wall is composed of a single layer of cells; during this stage (about eight days after fertilization) implantation in the wall of the uterus occurs
Similar
Also see
Synonym sets from Open English WordNet, CC BY 4.0.
Origin
Cite this entry
APA
blastosphere. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/blastosphere
MLA
“blastosphere.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/blastosphere. Accessed November 2, 2026.
Chicago
WatkinsX Dictionary, s.v. “blastosphere,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/blastosphere.
Source: blastosphere on Wiktionary, CC BY-SA 4.0.