Bronchitis Posted on 3rd November 201519th July 2021 by ThePD (The Project Definition) Bronchitis is an inflammation of the main air passages to the lungs causing them to become irritated and inflamed. Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window)Click to share on LinkedIn (Opens in new window) Related Posted in HSE and tagged health. ThePD (The Project Definition) ThePD has been developing the Preferred Project Definitions based on the actual project execution and operation experiences and knowledge with the Project Language, and sharing with you daily basis.