How to use BydTermCymru Here you will find information about how to use the resources on BydTermCymru. How to search TermCymru Hints on using TermCymru. TermCymru fields An explanation of the information fields which appear with each term in TermCymru. The status of terms An explanation of the status regime in TermCymru. How to search the Arddulliadur Suggestions on using the Arddulliadur. The meaning of 'term' and 'terminology standardization' What is a term, and why do we standardize terminology?