interprincipal
Interprincipal is a rare adjective used in a small set of technical writings to describe something positioned between principal elements or functions within a system. It does not have a single, widely accepted definition and is not listed in major English dictionaries; its meaning is derived from context. In mathematical or physical discourse, an interprincipal quantity, line, or region would be one that lies between two principal components, axes, or modes of a structure. In organizational or governance literature, the term can be used to refer to processes, actors, or decisions that operate between primary authorities. In linguistics or philology, it could describe a form or pattern that occurs between the principal stems in a paradigm or between main variants in a corpus.
Because interprincipal is not standardized, authors who use it usually define their intended meaning within the