[rapfaria]

An AI-powered browser extension that shows on hover the most likely acronym meaning, based on context you say?

[aquariusDue]

I've used this one for a hot minute a few weeks ago: https://lumetrium.com/definer/

It also can be configured to use Ollama or an API key from other providers (OpenRouter included) and from what I gather the default prompt can be changed too.

Sadly it's closed source.