topographic adolescence

noun

variants or topographic youth

: the condition of a district soon after the beginning of erosion by streams when main branches have well-developed narrow valleys and the areas between the streams are little modified

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