Clarke's spheroid

noun

: an ideal oblate spheroid generally recognized as representing the figure of the earth at average sea level

Word History

Etymology

after Alexander R. Clarke †1914 English geodesist

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