tegak lurus

== Indonesian == === Etymology === Compound of tegak (“upright”) +‎ lurus (“straight”), calque of Dutch loodrecht (“perpendicular”). === Pronunciation === IPA(key): [təˈɡak̚ ˈlurʊs] === Adjective === tegak lurus perpendicular === Further reading === “tegak lurus”, 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