nulpunkt

From nul (“zero”) +‎ punkt (“point”), a calque of German Nullpunkt.

• IPA^(key): /nolpoŋˀt/, [ˈnɔlˌpʰɔŋˀd̥]

nulpunkt n (singular definite nulpunktet, plural indefinite nulpunkter)

1. (mathematics) root, zero (element ${\displaystyle x}$ in the domain of a function such that ${\displaystyle f(x)=0}$)

   Synonym: rod

2. (physics) zero (temperature)
3. (figuratively) a very low point

• “nulpunkt” in Den Danske Ordbog