Presiding Member” means a member of a principal council who has been designated by that council to carry out functions in relation to the chairing of its meetings and proceedings.
Ystyr "Aelod llywyddol" yw aelod o brif gyngor sydd wedi ei ddynodi gan y cyngor hwnnw i gyflawni swyddogaethau mewn perthynas â chadeirio ei gyfarfodydd a'i drafodion.