> "Lecturer" is a non-tenure-track position that means you get paid a few thousand dollars to teach a class.
In the US (which this person is).
In most of the rest of the English-speaking world, the majority of full-time academics are "lecturers" (or even "senior lecturers"), expected to do both teaching and research, and a PhD is usually required (but exceptions have occasionally been made). An "adjunct/visiting/associate/guest lecturer" is a different thing, that's generally a part-time or even honorary position, and there are no expectations about research output.
Part of this is because Americans inflated the title of professor to the point of making almost every full-time/permanent academic one, whereas in the UK and Commonwealth professor was reserved for the most senior rung of academics, with associate professor for those part-way there. (For most fields–medicine has a lot more professors, but clinical professor is generally a giveaway they spend the majority of their time treating patients, and teaching and research is a side-gig.)
Although–I wonder if everyone in the US uses the terminology in the same way. It is not unheard of for some university out there to just do something weird which others don't. Not saying that's true in this person's case, but not impossible.
