tetraster

noun

tet·​ras·​ter

(ˈ)te‧¦trastə(r)

plural -s

: a mitotic figure characterized by four astral poles instead of the more usual two and in an embryo usually resulting from abnormal polyspermy

Word History

Etymology

New Latin, from tetra- + -aster

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