spireme

American  

[spahy-reem] / ˈspaɪ rim /

noun

Cell Biology.

1. the threadlike chromatin of a cell nucleus, present during early meiosis or mitosis.

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spireme British  

/ ˈspaɪriːm /

noun

1. cytology the tangled mass of chromatin threads into which the nucleus of a cell is resolved at the start of mitosis

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Etymology

Origin of spireme

1885–90; < Greek speírēma coil, equivalent to speirē-, variant stem of speirâsthai to be coiled around + -ma noun suffix of result

Example Sentences

See Examples For:

spireme

First spermatocyte, spireme stage showing the unequal pair of heterochromosomes.

From Studies in Spermatogenesis Part II by Stevens, Nettie Maria

In Sagitta this element certainly can not be regarded as a specialized spermatogonial chromosome, or as chromatin rejected from the spireme.

From Studies in Spermatogenesis Part I by Stevens, Nettie Maria

First spermatocyte, early spireme stage, showing unequal pair of chromosomes. 6-7.

From Studies in Spermatogenesis Part II by Stevens, Nettie Maria

First spermatocyte, spireme stage, x the odd chromosome.

From Studies in Spermatogenesis Part II by Stevens, Nettie Maria

The first division is thus a reducing division, while the split appearing in the anaphase of the heterotype and presumably reappearing in the prophase of the homotype is the original split of the spireme thread.

From Encyclopaedia Britannica, 11th Edition, Volume 7, Slice 8 "Cube" to "Daguerre, Louis" by Various