abu berat

== Indonesian == === Etymology === Compound of abu (“ash”) +‎ berat. === Noun === abu berat (plural abu-abu berat) bottom ash (the non-combustible residue of combustion in a power plant, boiler, furnace, or incinerator) Synonym: abu dasar === Further reading === “abu berat”, in Kamus Besar Bahasa Indonesia [Great Dictionary of the Indonesian Language] (in Indonesian), Jakarta: Agency for Language Development and Cultivation – Ministry of Education, Culture, Research, and Technology of the Republic of Indonesia, 2016