Hiottu

Hiottu is a Finnish adjective meaning polished or ground smooth, produced by grinding, sanding, or polishing. It describes a surface or object that has been finished to a refined, smooth state. The term is derived from the verb hioa (to grind, sand, polish) with the past participle suffix -ttu, yielding hiottu as a modifier or predicative adjective.

In usage, hiottu describes materials such as stone, metal, glass, or wood that have undergone smoothing or polishing to a high finish. It is common in fields like construction, manufacturing, jewelry, sculpture, and interior design. Hiottu can also be used figuratively to denote refinement or thorough preparation, for example hiottu järjestelmä (a polished or well-refined system).

Grammatical notes: hiottu functions as an adjective and inflects for case and number in Finnish. It can be used attributively, as in hiottu kivi (polished stone), or predicatively, as in Pinta on hiottu (The surface is polished). The opposite form is typically hiomaton, meaning unpolished or rough.

Related terms include hioa (to grind or polish) and hionta (grinding/polishing, the act of finishing). In some contexts, kiillotettu (polished to a glossy finish) may be used for surfaces intended to have a high shine, offering a nuance closer to a high-gloss polish.

See also: hioa, hionta, hiominen, hiotun materiaalin käyttö.