from The American Heritage® Dictionary of the English Language, 4th Edition
- n. Soil rich in alumina and iron and deficient in carbonates, found in and characteristic of humid regions.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. Soil containing aluminum and iron that lacks a hardened layer of carbonates
ped(o)-1 + al(uminum) + Latin ferrum, iron.(American Heritage® Dictionary of the English Language, Fourth Edition)
ped- + alumen + ferrum (Wiktionary)