in English is:

lithology

Mutations

Soft:(no mutation)
Nasal:(no mutation)
Aspirate:(no mutation)

Use

y litholeg hon
fy litholeg i
dy litholeg di
ei litholeg ef/o
ei litholeg hi
ein litholeg ni
eich litholeg chi
eu litholeg nhw/hwy
External

Dictionary Portal

This is a library of dictionaries and other online resources where you can search further for litholeg*:

Specialist Dictionaries
Glossaries
Terminology
Encyclopedia
Example Sentences
Sentences containing:

*External websites will be opened in a new window.