n
a cell that divides by schizogony
adj
(biology) Segmenting unequally; said of telolecithal ova with complete segmentation.
n
(biology, archaic) The theory that the spermatozoon and not the ovum contains the whole of the embryo; spermatism.
adj
(genetics) Relating to caryonides
adj
Alternative form of cleidoic [(biology, of an egg) Enclosed in a protective shell that limits the interchange of fluids]
n
(also cytology) Synonym of ovum (“the female gamete of an animal”); an egg cell.
n
Alternative form of embryo sac [The megagametophyte in a flowering plant.]
adj
(biology) Of cells that reproduce through fission, splitting into two.
adj
Of or pertaining to gametes.
adj
(botany) Relating to a plant ovary
n
(anatomy) A layer of small cells that forms the wall of an ovarian follicle.
adj
(biology) Having the yolk unevenly distributed within the cytoplasm
n
A form of matrotrophy exhibited by some live-bearing sharks and rays, in which the developing embryo receives additional nutrition from its mother in the form of uterine secretions called histotroph
adj
Relating to a karyotheca
adj
(biology) Describing ovaries (especially of insects) that secrete nutritive (yolk) material as well as ova
n
(botany) The production of a single embryo (and thus seedling) from a seed
n
(cytology) A cell that develops into an egg or ovum; a female gametocyte.
adj
of or pertaining to an oogonium
adj
Containing eggs or ova
adj
of, pertaining to or characteristic of an oophyte
n
(biology) The haploid cell, produced by meiotic division of a secondary oocyte, that is a nearly mature ovum.
n
A Graafian follicle; any sac containing an ovum or ova.
n
(now historical) The belief that the ovum holds all material needed for the development of the embryo.
n
Alternative spelling of oocyte [(cytology) A cell that develops into an egg or ovum; a female gametocyte.]
n
(rare, dated) Alternative spelling of oogone [An oogonium.]
adj
Alternative spelling of oogonial [of or pertaining to an oogonium]
n
Alternative spelling of oogonium [(biology) An immature ovarian egg within a developing fetus.]
adj
Alternative spelling of ooid [Shaped like an egg; ovoid; ovate.]
adj
Alternative spelling of ooidal [Egg-shaped.]
adj
Alternative spelling of oophytic [of, pertaining to or characteristic of an oophyte]
n
Alternative spelling of ootheca [An egg case of any of the orthopteroid insects (such as cockroaches and mantids).]
n
Alternative spelling of ootid [(biology) The haploid cell, produced by meiotic division of a secondary oocyte, that is a nearly mature ovum.]
adj
(biology) Relating to plasmogamy
n
(mycology) Stage of sexual reproduction joining the cytoplasm of two parent mycelia without the fusion of nuclei.
n
The precursor stage of a zoea
n
single-celled eukaryotes
adj
Of or pertaining to schizogony.
adj
Relating to schizogony.
n
(biology) The final stage of spermatogenesis. It involves the maturation of the spermatids into spermatozoa.
adj
That secretes nutrition at the end of an ovariole
adj
Of or relating to a zygote or to zygosis.
adj
(biology) Of, pertaining to or existing as a zygote.
n
(biology) The product of the union of gametoids, analogous to a zygote.
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