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zygonema
zygonema n. 
/ˌzɪɡəˈniːmə/, /ˌzɪɡəˈnimə/ [ < French zygonema (V. Grégoire 1907, in La Cellule XXIV. 371), < Greek νῆμα thread] Cytology †(a) a chromosome at zygotene; (b) = zygotene n.; now rare.
Brit. /ˌzʌɪɡəˈniːmə/
, /ˌzʌɪɡəˈniːmə//ˌzɪɡəˈniːmə/U.S. /ˌzaɪɡəˈnimə/
, /ˌzaɪɡəˈnimə//ˌzɪɡəˈnimə/ΘΚΠ
the world > life > biology > biological processes > genetic activity > [noun] > stages of mitosis or meiosis
resting stage1810
prophase1884
anaphase1887
metaphase1887
synapsis1895
telophase1895
maturation division1896
postsynapsis1898
strepsinema1900
synizesis1905
interkinesis1906
pachynema1909
telosynapsis1909
leptonema1911
metasyndesis1911
strepsitene1911
zygonema1911
zygotene1911
leptotene1912
pachytene1912
interphase1913
telosyndesis1920
prometaphase1931
dictyotene1957
dictyate1958
the world > life > biology > biological processes > genetic activity > genetic components > [noun] > chromosome > chromosomes in respect of meiosis
trivalency1888
zygosome1905
bivalence1909
zygonema1911
trivalent1922
quadrivalent1923
quinquevalent1926
multivalent1929
nullisomic1932
bivalent1937
nullisome1944
1911 Q. Jrnl. Microsc. Sci. 57 32 The debatable stages of the meiotic prophases in which parasyndesis and its associated phenomena occur—leptonema, zygonema..—have been dealt with by many experienced cytologists.
1911 Q. Jrnl. Microsc. Sci. 57 33 By the time the zygonema is fairly far advanced we do get appearances not unlike what may occasionally..be found in the condensation of a somatic chromosome.
1976 Nature 8 Apr. 534/2 It is generally known that during zygonema (stages XII–XIV in rat spermatogenesis) the homologous sets of sister chromatid pairs begin to come together and associate with one another.
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as lemmas