mantle fiber

noun

: one of the apparent fibers that pass between the centromeres of the chromosomes and the poles of the mitotic spindle and that appear to draw the chromosomes apart

The Ultimate Dictionary Awaits

Expand your vocabulary and dive deeper into language with Merriam-Webster Unabridged.

1. Expanded definitions
2. Detailed etymologies
3. Advanced search tools
4. All ad-free

Discover what makes Merriam-Webster Unabridged the essential choice for true word lovers.

Start Your Free Trial Now