metaphase
Americannoun
noun
-
The stage of cell division in which the duplicated chromosomes become aligned along the center of the cell, called the equatorial plate or metaphase plate. Metaphase lasts up to an hour, and ends in mitosis and the second division of meiosis when separation of the paired chromosomal strands (called chromatids) begins. In the first division of meiosis, the paired chromosomes separate from one another. Metaphase is preceded by prophase and followed by anaphase.
Etymology
Origin of metaphase
Explanation
The second stage of mitosis, or cell division, is known as metaphase. During metaphase, the cell's chromosomes line up along its center line. Metaphase com from Greek roots meaning "adjacent or between" and "stage." During this stage, chromosomes stop moving back and forth and are held in the middle of the cell by tube-shaped spirals of protein called microtubules. This prepares the cell for the next stage of mitosis, anaphase, moving it one step closer to dividing.
Vocabulary lists containing metaphase
Cell Biology - Middle School
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Cell Biology - High School
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Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Prophase II mimics prophase I. Metaphase I occurs when chromosomes appear in homologous pairs on the spindle.
From Textbooks • Jun. 9, 2022
During Metaphase II, the chromosomes line up in a double line across the spindle.
From Textbooks • Jun. 9, 2022
Prophase II mimics prophase I. Metaphase I occurs when chromosomes appear in homologous pairs on the spindle.
From Textbooks • Jun. 9, 2022
Prophase II mimics prophase I. Metaphase I occurs when chromosomes appear in homologous pairs on the spindle.
From Textbooks • Jun. 9, 2022
Metaphase, unsymmetrical pair out of the equatorial plane.
From Studies in Spermatogenesis Part I by Stevens, Nettie Maria
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
