Kruhy

Kruhy is a Czech and Slovak noun meaning circles or rings. It is used in a variety of contexts to denote round shapes or circular features. The plural kruhy covers multiple instances; the singular kruh can refer to a single circle or disk.

In geometry, kruh or kruhy describe circular figures, and related adjectives such as kruhový (circular) appear in mathematical and everyday language.

In astronomy, kruhy can refer to planetary rings, for example the rings of Saturn, as well as ring-like structures observed around celestial bodies.

In biology and forestry, kruhy denote growth rings in a tree trunk, formed by yearly layers of wood. These rings are used to infer the age of the tree and to study past environmental conditions during its growth.

In everyday use and industry, kruhy can describe any ring-shaped object, such as jewelry rings, hoops, or circular components in machinery. In technology, the term may be used colloquially to refer to circular tracks on disks or bearings, though technical terms vary by context.

Etymology: kruhy derives from the Proto-Slavic word kruh, meaning circle or ring.