Be more precises in terminology, without losing the people as unfamiliar with the terms as I am

Some good feedback from people more familiar with the topic than me here:

https://www.reddit.com/r/visualization/comments/6qpmio/flame_maps_i_designed_new_type_of_graph_and_would/

One the one hand, it is important to be clear and exact in the descriptions.

On the other, being too concise will confuse those unfamiliar with the terms.