kala ulang

== Indonesian == === Etymology === Compound of kala (“time”) +‎ ulang (“to repeat”). === Adjective === kala ulang (hydrology) periodic having repeated cycles occurring at regular intervals === Noun === kala ulang the average frequency of major floods with a certain discharge === Further reading === “kala ulang”, 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