Standard Lemma guide
Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.
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noun
An early form in the development of an embryo, consisting of a spherical layer of cells filled with fluid; a blastosphere.
Definition source: English Wiktionary via Wiktextract
Topics: embryology, medicine, sciences
No example sentence was provided for this meaning.
Synonyms: none provided
Antonyms: none provided
noun
early 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
Definition source: Princeton WordNet 3.0
No example sentence was provided for this meaning.
Synonyms: blastosphere
Antonyms: none provided
Broader terms: embryo, conceptus, fertilized egg
Narrower terms: blastocyst, blastodermic vessicle
History
From New Latin blastula, diminutive of Ancient Greek βλαστός (blastós, “a germ, bud, sprout, shoot”), from βλαστάνω (blastánō, “to bud, sprout, grow, properly of plants, but also of animals”).
Across languages
12 source translations are retained for this English entry.
