läpireikänä

Läpireikänä is a Finnish linguistic form used to describe something that functions as or is characterized by a through-hole. In technical contexts it refers to a hole, bore, or opening that allows passage from one side of a material or component to the other, as opposed to a blind or partially bored feature. The term is most common in engineering, manufacturing, and electronics documentation.

Etymology and form: the word is built from läpi meaning through and reikä meaning hole, with the essive suffix -nä forming a state or role, roughly translating to "as a through-hole." The form läpireikänä thus marks the through-hole function in a given object or design.

Contexts and usage: in electronics, the concept aligns with through-hole components or through-hole mounting, where parts pass through the PCB and are soldered on the opposite side. In mechanical engineering or product design, läpireikänä describes features such as through-holes or passages that permit fasteners, cables, or fluids to traverse a part. The term appears mainly in technical manuals, design specifications, or engineering discussions; in everyday Finnish it is uncommon outside such contexts.

Variants and related terms: related vocabulary includes the noun läpireikä (the through-hole) and compounds such as läpireikäinen or läpireikäinen used in some texts to describe a component as having a through-hole. In many Finnish documents, especially multilingual ones, the English term through-hole or the concept of through-hole technology is used alongside or in place of native forms.

See also: through-hole, through-hole technology, Finnish technical vocabulary.