We found 3 dictionaries that define the word frictional soil:

General (2 matching dictionaries)

1. frictional soil: Collins English Dictionary
2. frictional soil: TheFreeDictionary.com

Business (1 matching dictionary)

3. Construction Term Glossary (No longer online)

▸ Words similar to frictional soil ▸ Usage examples for frictional soil ▸ Idioms related to frictional soil ▸ Wikipedia articles (New!) ▸ Words that often appear near frictional soil ▸ Rhymes of frictional soil ▸ Invented words related to frictional soil