reduction division

American  

noun

Biology.

1. the first division of meiosis in which the number of chromosomes is reduced to half the original number.

2. meiosis.

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reduction division British  

noun

1. another name for meiosis

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Etymology

Origin of reduction division

First recorded in 1890–95

Example Sentences

See Examples For:

reduction division

“On Skid Row, it’s a day-to-day crisis. It’s visible,” said Shoshanna Scholar, director of the harm reduction division at the Los Angeles County Health Department.

From Los Angeles Times ● May 31, 2023

For this reason, meiosis I is referred to as a reduction division.

From Textbooks ● Jun. 9, 2022

Here it is only necessary to refer to the abnormalities in the reduction division which are related to mutation, and the results of these abnormalities in the number of chromosomes.

From Hormones and Heredity by Cunningham, J. T.

Miss Fraser in Humaria rutilans finds two reductions: a normal synaptic reduction in the first nuclear division of the ascus, and a peculiar reduction division termed brachymeiosis in the third ascus division.

From Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 3 "Frost" to "Fyzabad" by Various

The first stage in the division of the nucleus in the gonotokonts has therefore been termed the reduction division.

From Darwin and Modern Science by Seward, A. C. (Albert Charles)