separatrix

noun

sep·​a·​ra·​trix

¦sepə¦rā‧triks

plural separatrices

ˌsepəˈrā‧trəˌsēz,

-rə‧ˈtrī(ˌ)sēz

also separatrixes

1

: a diagonal or upright stroke used to separate one marginal proof correction from another in the same line

2

: diagonal sense 4

Word History

Etymology

New Latin, from Late Latin, feminine of separator

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