sívalningsins

Sívalningsins is the definite genitive singular form of the Icelandic noun sívalningur, which means cylinder. The form is used to indicate possession or association with a cylinder, and it appears in phrases such as yfirborð sívalningsins (the surface of the cylinder) and lengd sívalningsins (the cylinder’s length).

In Icelandic, the genitive case expresses relationships such as ownership, material, or measurement, and the definite genitive is used when both the noun and its possessor are definite. Sívalningsins therefore functions as the specific cylinder under discussion in technical or descriptive contexts, particularly in geometry, engineering, and product specifications.

Etymology and form: sívalningsins is formed from sívalningur (cylinder) together with the endings that denote the genitive in the definite singular for this noun. This pattern is typical for Icelandic nouns where the definite genitive is used to link the noun to another definite element in a sentence.

See also: sívalningur, cylinder (geometric shape), Icelandic grammar (genitive case).