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.
A Fresh Air Screen is a patented screen for your garage, porch, patio or other structural opening that lets fresh air in and keeps pests and debris out. Screens are simple to install and easy to maintain.