meiosis

• n. [細胞]減数分裂; [遺産] [細胞]成熟分裂

ギリシャ語のmeion（減少する）から、PIE*mei（小さい、少ない）の語源で、語源的にはminute（分）、minus（マイナス）、diminish（減少）と同じ。細胞の減数分裂を指す。

meiosis (n.)

"division of a cell nucleus," 1905, from Greek meiosis "a lessening," from meioun "to lessen," from meion "less," from PIE root *mei- (2) "small" (see minus).

Earlier (1580s) it was a rhetorical term, a figure of speech "weak or negative expression used for a positive and forcible one, so that it may be made all the more emphatic," as when one says "not bad" meaning "very good" or "don't mind if I do" meaning "I really would like to," or this example from "Mark Twain":

"YOUNG AUTHOR." -- Yes Agassiz does recommend authors to eat fish, because the phosphorus in it makes brains. So far you are correct. But I cannot help you to a decision about the amount you need to eat,--at least, not with certainty. If the specimen composition you send is about your fair usual average, I should judge that perhaps a couple of whales would be all you would want for the present. Not the largest kind, but simply good, middling-sized whales.

Related: meiotic; meiotically.

1. Meiosis ，which occurs only in the formation of gametes，is a specialized form of cell division.

配偶子形成にのみ発生する減数分裂は特殊な形式の有糸分裂である。

2.The stage of mitosis and meiosis in which the chromosomes nuclear spindle.

有糸分裂および減数分裂時に紡錘体に沿って染色体を配列する。

3. Meiosis of microspore mother cells is synchronous or unsynchronous.

小胞子母細胞減数分裂同期または非同期.

4.Secondary oocyte immediately into the 2 nd meiosis ，and stop at the metaphase.

二次卵母細胞は直ちに第2次減数分裂に入り、分裂中期に停止した。

5.The failure of any process in meiosis can result in chromosome mal-discunction.

このプロセスでは、どのプロセスのエラーも染色体の異常な分離を引き起こす可能性があります。