Noun. 1. pathogen-any disease-producing agent (especially a virus or bacterium or other microorganism). microorganism, micro-organism-any organism of microscopic size. infectious agent, infective agent-an agent capable of producing infection.Translations.. pathogen-any disease-producing agent (especially a virus or bacterium or other microorganism). microorganism, micro-organism-any organism of microscopic size.
Timber porch detail. A covered porch. A porch (from Old French porche, from Latin porticus colonnade, from porta passage) is a construction usually external to the walls of the main building proper, but may be enclosed by latticework, broad windows, screen, or other light frame walls extending from the main structure.
But the after photo reveals what an enclosed porch can add to a home's exterior beauty and use. The original roofline was untouched, but a porch addition with broad pyramidal columns add vintage-looking support for the ceiling. New Porch for a Bungalow The charms of this petite bungalow are hidden in the before photo. But the after photo reveals what an enclosed porch can add to a home's exterior beauty and use. The original roofline was untouched, but a porch addition with broad pyramidal columns add vintage-looking support for the ceiling.