EMBRYO

Pronunciation (US): (GB):

I. (noun)

Sense 1

Meaning:

An animal organism in the early stages of growth and differentiation that in higher forms merge into fetal stages but in lower forms terminate in commencement of larval life

Synonyms:

conceptus; embryo; fertilized egg

Classified under:

Nouns denoting animals

Hypernyms ("embryo" is a kind of...):

animal; animate being; beast; brute; creature; fauna (a living organism characterized by voluntary movement)

Meronyms (parts of "embryo"):

umbilical; umbilical cord (membranous duct connecting the fetus with the placenta)

Hyponyms (each of the following is a kind of "embryo"):

blastosphere; blastula (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)

gastrula (double-walled stage of the embryo resulting from invagination of the blastula; the outer layer of cells is the ectoderm and the inner layer differentiates into the mesoderm and endoderm)

morula (a solid mass of blastomeres that forms when the zygote splits; develops into the blastula)

Derivation:

embryonal (of an organism prior to birth or hatching)

embryonic (in an early stage of development)

embryonic (of an organism prior to birth or hatching)

embryotic (in an early stage of development)

Sense 2

Meaning:

(botany) a minute rudimentary plant contained within a seed or an archegonium

Classified under:

Nouns denoting plants

Hypernyms ("embryo" is a kind of...):

flora; plant; plant life ((botany) a living organism lacking the power of locomotion)

Domain category:

botany; phytology (the branch of biology that studies plants)

Credits

Context examples:

The inner of the three germ layers of the embryo.

(Murine Endoderm, NLM, Medical Subject Headings)

The middle germ layer of the embryo.

(Murine Mesoderm, NLM, Medical Subject Headings)

A cell line derived from fibroblasts of disaggregated Swiss mouse embryos.

(NIH/3T3, NLM, Medical Subject Headings)

It also infects rats and newborn hamsters and is apparently transmitted vertically to embryos in utero and through mother's milk.

(Moloney Leukemia Virus, NCI Thesaurus)

This allele, which encodes basigin protein, plays a role in the regulation of metalloprotease gene expression, embryo implantation, spermatogenesis and neural network formation.

(BSG wt Allele, NCI Thesaurus)

A preimplantation embryo of about 150 cells produced by cell division following fertilization.

(Blastocyst, The Titi Tudorancea Bulletin)

This gene is involved in spermatogenesis, embryo implantation, expression of protease genes and neural development.

(BSG Gene, NCI Thesaurus)

None had any sign of a developing embryo.

(Giant group of octopus moms discovered in the deep sea, National Science Foundation)

It uses medicine or surgery to remove the embryo or fetus and placenta from the uterus.

(Abortion, NIH)

By adding the PESCs, the team was able to see their ‘embryo’ undergo gastrulation, organising itself into the three body layers that all animals have.