"Science Professor" LOR

Hello! Posted a separate thread because I had a separate question regarding LOR's. What's considered a science professor? One of my science courses in the summer was taught by someone who has a masters but not a PhD, and they do not teach during the regular school year. Would this still count as a science professor? They also were an EC advisor for me, so I'm not sure how to categorize them. If I could use them as a science professor, that would be great, though, as we had a strong relationship.
Source: Student Doctor Network - Category: Universities & Medical Training Authors: Tags: Pre-Medical (MD) Source Type: forums