[Jtsummers]

https://www.pamelazave.com/faq.html - FAQ Sheet on Feature Interaction

> What is a feature interaction?

> A feature interaction is some way in which a feature or features modify or influence another feature in defining overall system behavior. Feature interactions are especially common in telecommunications, because all features are modifying or enhancing the same basic service, which is real-time communication among people.

> Features are popular because they are easy to add and change. The dark side of features is feature interaction, which is implicit in feature composition and therefore difficult to understand. [emphasis added]

[smcin]

...whereas in data science or statistics, a "feature interaction" is the influence of a combination of features on the target variable, e.g. "age 55+, baseball fan and living in zipcodes X tend to exhibit behavior Y".

Since part of this thread is complaining about the overuse and lack of universality of jargon.