cone-in-cone

noun

: a small-scale geologic structure resembling a set of concentric cones piled one above another developed in sedimentary rocks under pressure with or without solution of adjacent materials

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