amphid

noun

am·​phid

ˈamfə̇d

plural -s

: one of a pair of circular depressions situated laterally at the anterior end of aquatic nematodes and believed to be chemoreceptors

Word History

Etymology

Greek amphidea anything that is bound around

First Known Use

1873, in the meaning defined above

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