“tetraster”的英文意思

单词

tetraster

释义

tetraster Biol.|tɪˈtræstə(r)|
[mod.L., f. tetra- + Gr. ἀστήρ star.]
A karyokinetic figure formed in the modification of a cell-nucleus by the combination of four star-like masses of chromatin united by spindles or filaments.
1890Billings Nat. Med. Dict., Tetraster, the figure presented when there are four centres of radiation during the indirect division of a nucleus into four daughter-nuclei.1909J. W. Jenkinson Exper. Embryol. 128 In the case where two sperm-nuclei unite with the egg-nucleus a tetraster is formed, that is four asters united by spindles in a square or rhombus.

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