ummál

Icelandic

Etymology

From Old Norse ummál. See the Old Norse ummæli (Icelandic ummæli). Compare the Icelandic um (“around”) + mál (“measurement”) and mæla (“measure”).

Noun

ummál n (genitive singular ummáls, nominative plural ummál)

  1. (mathematics) a perimeter; (sum of the distance of all the lengths of the sides of an object)
  2. (mathematics) a circumference; (length of a line that bounds a circle or other two-dimensional figure)

Declension

Declension of ummál (neuter, based on mál)
singular plural
indefinite definite indefinite definite
nominative ummál ummálið ummál ummálin
accusative ummál ummálið ummál ummálin
dative ummáli ummálinu ummálum ummálunum
genitive ummáls ummálsins ummála ummálanna

Derived terms

  • brjóstummál
  • jafn að ummáli (“isoperimetric”)
  • meðalbrjóstummál
  • ummálsjafn (“isoperimetric”)
  • ummálsjafnaðarójafna (“isoperimetric inequality”)
  • ummálsjafnaðarverkefni (“isoperimetric problem”)
  • ummálsmikill
  • ummálsregla (“half-angle formula”)
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