diastern.

/dʌɪˈastə/

Forms: Also dyaster.

Etymology: modern < Greek δι-, di- comb. form twice + ἀστήρ star.

Biology.

The double star of chromatin filaments which forms the penultimate stage in the division of a single cell-nucleus into two.

ΚΠ

1882 J. T. Cunningham in Jrnl. Microsc. Soc. Jan. 43 The threads travel towards the poles, forming a dyaster (note, This term I take from Klein in his Atlas of Histology, 1880).

1885 E. R. Lankester in Encycl. Brit. XIX. 833 A polar star is seen at each end of the nucleus-spindle, and is not to be confused with the diaster.

Derivatives

diˈastral adj.

ΚΠ

1894 Athenæum 24 Nov. 719/3 As to the spindle fibres..during the diastral stage of the division they [etc.].

This entry has not yet been fully updated (first published 1895; most recently modified version published online December 2020).

单词	diaster
释义	diastern. /dʌɪˈastə/ Forms: Also dyaster. Etymology: modern < Greek δι-, di- comb. form twice + ἀστήρ star. Biology. The double star of chromatin filaments which forms the penultimate stage in the division of a single cell-nucleus into two. ΚΠ 1882 J. T. Cunningham in Jrnl. Microsc. Soc. Jan. 43 The threads travel towards the poles, forming a dyaster (note, This term I take from Klein in his Atlas of Histology, 1880). 1885 E. R. Lankester in Encycl. Brit. XIX. 833 A polar star is seen at each end of the nucleus-spindle, and is not to be confused with the diaster. Derivatives diˈastral adj. ΚΠ 1894 Athenæum 24 Nov. 719/3 As to the spindle fibres..during the diastral stage of the division they [etc.]. This entry has not yet been fully updated (first published 1895; most recently modified version published online December 2020). < n.1882
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