I’ve just walked out of a wonderful meeting that has kind of left me on a “science high”. The Raj Lab (my new scientific home in Philadelphia), Thomas Gregor’s lab from Princeton and Dan Larson’s lab from the NIH had a get-together, talking science, methods, data. It was really great, with loads of lively discussion. But I don’t want to discuss any of the actual science here. Instead, I’d like to share some ideas about scientific terminology, how a given word might have different “baggage” attached to it depending on your background/training, and whether fuzzy definitions may actually be useful in biology.