ecotone n. an area where two ecologies meet or overlap. (source: Double-Tongued Dictionary)
Further reading
If you reeeeeeeeeally want to emphasize something in writing, you can engage in what linguists call expressive lengthening, or making a word longer by repeating letters. It’s an example of paralinguistic restitution — rendering in text...
Language from inside a monastery. A Benedictine monk shares terms from his world: For example, corporate prayer refers to praying as a group, not urging shares to return dividends. And did you know there’s a term of art for those annoying add...