adj
(biology, of an egg) Not hydropic (replete with yolk)
n
(biology) One of the cells at the chalazal pole of an embryo sac.
adj
(biology) Having formative elements such as buds, germs, cells, or cell layers
n
(biology) A resting stage in the development of oocytes, during the meiotic prophase
n
(biology) Any diploblastic organism
adj
(dated) of, related to, or composed of ectoplasm; ectoplasmic
n
A cell, found in females, which merges with a sperm cell to form a zygote.
n
(biology) The formation of an embryo; embryogenesis.
adj
That provides nourishment to an embryo
n
A hypothetical substance supposed to be the active agent in fertilization, having two side chains, one reacting with the sperm, the other with the ovum.
adj
(embryology) Pertaining to, or connected with, a gamete.
n
The cytogenesis of gametes
n
(cytology) A cell that is part of the germ line: a gametocyte, an ovum or a sperm cell.
n
(biology) The basic form of an organism; the seed or germ.
n
(biology) The primitive cell in certain embryonic forms.
adj
Relating to glideosomes
adj
(biology) Relating to homodermy; originating from the same germ layer; homological in respect of derivation from one of the three primary blastoderms (endoderm, mesoderm, and ectoderm).
n
(biology, archaic) One of the nuclear rods or chromosomes in a fertilized ovum, supposed to contain an aggregate of the ids, or all kinds of biophores of the organism.
adj
Having or relating to a yolk.
n
The property of having a yolk.
adj
That feeds on egg yolks
n
(archaic) The nucleus of an impregnated ovum.
n
(biology) The part of an ovum that undergoes merogony
n
An unusually small blastomere formed by unequal cleavage of a fertilized ovum.
adj
(biology, of a cell) Having a single nucleus
adj
(biology) Having a small amount of yolk in the cytoplasm
n
(biology) The fertilization of an oocyte by several spermatozoa
adj
Relating to, or composed of oocytes
n
The creation and development of oocytes
n
(biology) An immature ovarian egg within a developing fetus.
adj
Concerning the cytoplasm of eggs
n
(biology) The ovum, after fusion with the spermatozoon in impregnation.
n
(anatomy) A spherical cellular aggregation found in the ovaries, each of them containing a single oocyte, or an immature ovum.
n
Any of a class of proteins involved in the formation of avian eggshells.
n
(cytology) The female gamete in animals; the egg cell.
n
(biology) The formation and development of bacterial pili
n
(biology) A mobile zygote.
n
The act of forming or moulding.
n
(biology) One of the small cells that are by-products of the meiosis that forms an egg.
n
(biology) One of a set of genetically identical embryos that develop from a single fertilized egg.
v
To undergo changes that lead to hatching, such as the rupture of internal membranes as the embryo begins to emerge from the blastoderm cuticle.
n
(cytology) An undifferentiated germline cell with the potential to become an oocyte.
n
(botany) A cluster of cells in the ovule of a fertilized flowering plant that has not yet formed into an embryo
n
Either of the two haploid nuclei (of a sperm and ovum) that fuse during fertilization
adj
(botany) Relating to intercellular spaces formed within undifferentiated plant tissues.
n
(biology) A primitive plasmodium composed of an undifferentiated microscopic mass
adj
(obsolete) prototypical
n
(zoology) An asexual form from which the true embryo is produced by budding.
n
Alternative form of pseudembryo [(zoology) A false embryo.]
n
(biology) The process of mitosis or meiosis.
n
(cell biology) The creation of spermatids from secondary spermatocytes during spermatogenesis.
n
(biology) The production of spermatocytes
n
(biology) In an embryo, an angle equal to two gons. If a mosaic forms in the embryo, the line passes between two organs with a probability, in percent, equal to the number of sturts between them.
n
(biology) The cord which suspends the embryo, and which is attached to the radicle in the young state; the proembryo.
n
(botany) Either of two naked nucleated cells at the top of the embryo sac that cooperate with the oosphere in the production of the embryo.
n
(biology) An elongated particle, particularly a cell
adj
(of an egg) having the yolk at one end
n
yolk deposition; the process of yolk formation via nutrients being deposited in the oocyte, or female germ cell involved in reproduction
n
Obsolete form of yolk. [The yellow, spherical part of an egg that is surrounded by the white albumen, and serves as nutriment for the growing young.]
n
(biology) The zygotene stage of meiosis.
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