in English is:

crystallography

Mutations

Soft:grisialeg
Nasal:nghrisialeg
Aspirate:chrisialeg

Use

y grisialeg hon
fy nghrisialeg i
dy grisialeg di
ei grisialeg ef/o
ei chrisialeg hi
ein crisialeg ni
eich crisialeg chi
eu crisialeg nhw/hwy
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