English: RMMB
Welsh: RMMB
Subject: Amaeth
English definition: Residuary Milk Marketing Board
Welsh definition: Y cwmni gafodd ei sefydlu ar ôl diddymu’r MMB i ofalu am ei asedau gweddilliol. Y mae ef ei hun bellach wedi’i ddiddymu. Dyma enw masnachu’r cwmni. 
Welsh context: Residuary Milk Marketing Board