# impedance mismatch

> English word · Noun

## Definitions
1. A set of conceptual and technical difficulties that are often encountered when a relational database is being served by an object-oriented application program, particularly because objects or class definitions must be mapped to database tables defined by a relational schema.

## Etymology
Derived from the concept of impedance matching in electrical engineering.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/impedance-mismatch