trephone

noun

treph·​one

ˈtreˌfōn

plural -s

: any of various substances in the blood serum and body fluids that promote the growth of cells

Word History

Etymology

International Scientific Vocabulary, modification of Greek trephein to nourish

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