zygoten.

Brit. /ˈzʌɪɡəʊt/, U.S. /ˈzaɪˌɡoʊt/
Etymology: < Greek ζυγωτός yoked, < ζυγοῦν to yoke.
Biology.
A body of living protoplasm, as a cell or cell-nucleus, formed by the conjugation or fusion of two such bodies in reproduction; a zygospore, or any germ-cell resulting from the union of two reproductive cells or gametes. Also attributive or as adj. That is a zygote, formed by conjugation; of or pertaining to a zygote.
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the world > life > biology > biological processes > procreation or reproduction > reproductive substances or cells > [noun] > zygote or syngamete (12)
zygote1891

A body of living protoplasm, as a cell or cell-nucleus, formed by the conjugation or fusion of two such bodies in reproduction; a zygospore, or any…

zygotoid1891

a multinucleate form of zygote in certain fungi (see quot.).

syngametea1900

The cell produced by the fusion of two gametes in reproduction.

ookinete1902

A zygote capable of autonomous movement, esp. as a stage in the life cycle of some parasitic protozoa.

1891 M. Hartog in Nature 17 Sept. 484 Paragamy or Endokaryogamy: vegetative or gametal nuclei lying in a continuous mass of cytoplasm fuse to form a zygote nucleus.
1895 F. W. Oliver et al. tr. A. Kerner von Marilaun Nat. Hist. Plants II. 628 The cell produced by the fusion of the bodies of two gametes is called the zygote.

Derivatives

zygotic adj.
Brit. /zʌɪˈɡɒtɪk/
,
U.S. /ˌzaɪˈɡɑdɪk/
pertaining to or of the nature of a zygote, produced or characterized by zygosis.
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the world > life > biology > biological processes > procreation or reproduction > reproductive substances or cells > [adjective] > zygote or syngamete (15)
syngamic1904

syngamous1904

zygotic1909

pertaining to or of the nature of a zygote, produced or characterized by zygosis.

1909 W. E. Castle Stud. Inheritance in Rabbits (Carnegie Inst. Publ. No. 114) 58 The enumeration of the conceivable different varieties of gray rabbit, all alike in appearance but all different in breeding capacity, i.e., of different zygotic formula.
1977 J. Cohen Reproduction ix. 163 The second phase of embryology begins, controlled by zygotic genes.
zyˈgotically adv. in the zygote; in terms of the zygote.
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the world > life > biology > biological processes > procreation or reproduction > reproductive substances or cells > [adverb] > zygote (1)
zygotically1915

in the zygote; in terms of the zygote.

1915 Jrnl. Genetics 5 45 Zygotically therefore the three forms [of rabbit] may be represented thus: Self-coloured..CCSS, Himalayan..CCss, Albino..ccss.
1931 Jrnl. Genetics 24 448 It is probable that the new combinations will be less successful than the old, both zygotically and gametically.
1980 Genetics 96 187 The possibility that essential loci in the zeste-white region of the Drosophila melanogaster X chromosome are expressed both maternally and zygotically has been tested.
zyˈgotoblast n. [-blast comb. form] one of a number of germ-cells or sporozoites produced by budding from a zygotomere (see below).
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the world > life > biology > biological processes > procreation or reproduction > reproductive substances or cells > [noun] > zygote or syngamete > zygotomere, etc. (3)
zoozygosphere1880

(in algae and fungi) a motile gamete; also called planogamete, zoogamete.

zygotoblast1899

one of a number of germ-cells or sporozoites produced by budding from a zygotomere (see below).

zygotomere1899

one of a number of cells formed by segmentation of a zygote in the malaria parasite or other Sporozoa.

zyˈgotoid n. [-oid suffix] a multinucleate form of zygote in certain fungi (see quot.).
ΘΚΠ
the world > life > biology > biological processes > procreation or reproduction > reproductive substances or cells > [noun] > zygote or syngamete (12)
zygote1891

A body of living protoplasm, as a cell or cell-nucleus, formed by the conjugation or fusion of two such bodies in reproduction; a zygospore, or any…

zygotoid1891

a multinucleate form of zygote in certain fungi (see quot.).

syngametea1900

The cell produced by the fusion of two gametes in reproduction.

ookinete1902

A zygote capable of autonomous movement, esp. as a stage in the life cycle of some parasitic protozoa.

1891 Nature 17 Sept. 484/1 In apocytial fungi multinucleated masses of protoplasm (gametoids) may conjugate to form a zygotoid.
zyˈgotomere n. [Greek μέρος part] one of a number of cells formed by segmentation of a zygote in the malaria parasite or other Sporozoa.
ΘΚΠ
the world > life > biology > biological processes > procreation or reproduction > reproductive substances or cells > [noun] > zygote or syngamete > zygotomere, etc. (3)
zoozygosphere1880

(in algae and fungi) a motile gamete; also called planogamete, zoogamete.

zygotoblast1899

one of a number of germ-cells or sporozoites produced by budding from a zygotomere (see below).

zygotomere1899

one of a number of cells formed by segmentation of a zygote in the malaria parasite or other Sporozoa.

1899 T. C. Allbutt et al. Syst. Med. VIII. 945 Nucleus and protoplasm divide into a number of zygotomeres, which become blastophores, each bearing on its surface..a large number of filamentous zygotoblasts.
This entry has not yet been fully updated (first published 1921; most recently modified version published online March 2022).
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