treidd-dyllau

noun plural
in English is:

boreholes

Use

y treidd-dyllau hyn
fy nhreidd-dyllau i
dy dreidd-dyllau di
ei dreidd-dyllau ef/o
ei threidd-dyllau hi
ein treidd-dyllau ni
eich treidd-dyllau chi
eu treidd-dyllau nhw/hwy
External

Dictionary Portal

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

Specialist Dictionaries
Glossaries
Terminology
Encyclopedia
Example Sentences
Sentences containing:

*External websites will be opened in a new window.