in English is:

convection

Mutations

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

Use

y darfudiad hwn
fy narfudiad i
dy ddarfudiad di
ei ddarfudiad ef/o
ei darfudiad hi
ein darfudiad ni
eich darfudiad chi
eu darfudiad nhw/hwy
External

Dictionary Portal

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

Specialist Dictionaries
Glossaries
Terminology
Encyclopedia
Example Sentences
Sentences containing:

*External websites will be opened in a new window.