Nelisylinterisen

Nelisylinterisen is the genitive singular form of the Finnish adjective nelisylinterinen, meaning "four-cylinder." The adjective describes something that has four cylinders and is commonly used in automotive and mechanical contexts to characterize engines or engine-related components. The form nelisylinterisen is used when the noun it modifies is in the genitive case, for example nelisylinterisen moottorin teho (the power of a four-cylinder engine) or nelisylinterisen auton moottori (the engine of a four-cylinder car).

Origin and construction: The word is a compound formed from neljä (four) and sylinteri (cylinder) with the derivational suffix -inen to make nelisylinterinen. The genitive singular ending -sen yields nelisylinterisen when the adjective modifies a genitive noun. This pattern is typical of Finnish adjectives that describe numerical or structural properties of mechanical objects.

Usage and scope: The term is primarily found in technical and automotive language. It appears in product specifications, service manuals, and automotive journalism to distinguish engines and machines with four cylinders from other configurations (for example, two- or six-cylinder variants). While most common with engines, the descriptor can appear in broader contexts where a four-cylinder arrangement is relevant.

See also: kaksylinterinen (two-cylinder), kolmisylinterinen (three-cylinder), nelisylinteriset (plural form referring to multiple four-cylinder items).

Note: As with many Finnish technical terms, correct usage depends on context and grammatical case of the noun being described.