Varustetuissa

Varustetuissa is a Finnish grammatical form, specifically the inessive plural form of the adjective varustettu, meaning "equipped." It is used to describe multiple objects or spaces that have been equipped with necessary features or equipment. As a participial adjective derived from the verb varustaa (to equip), varustettu denotes a state of being equipped, and varustetuissa indicates that state in a plural inessive (in, inside).

In practical use, varustetuissa appears in phrases where a noun follows in a plural form in the inessive. For example, varustetuissa tiloissa means "in the equipped spaces," and varustetuissa laitteissa would be the "in the equipped devices." The form is common in technical, architectural, and facilities descriptions, where it is important to state that multiple items or areas are already outfitted with the required equipment or features.

Usage notes include that varustetuissa is not a standalone noun but a morphological form of varustettu used with a following plural noun. It can be used attributively (before the noun) in collocations like varustetuissa tiloissa or predicate-like in phrases describing conditions of spaces or equipment.

See also: varustettu (the base adjective meaning equipped), varustaminen (the process of provisioning or equipping), Finnish grammar—participles and adjective declensions.

In summary, varustetuissa is the plural inessive form of varustettu, employed to characterize multiple items or locations as being equipped. Its meaning centers on the condition of being outfitted with the relevant equipment.