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.
Spartacus Educational. Farm Tools. Moulboard Plough: A plough that produced a deep furrow and turned the earth after it had been cut by the coulter and share. The moulboard was the device for guiding the plough and turning the earth over. To get the right depth for the seed the plough has to both cut and turn the earth.
A gardening or garden trowel is a multipurpose garden tool with a blade of metal or polymer and a handle. The blade may be attached to the handle with a curve or lift, as in a shovel, or straight, as in a spade. Sometimes they are, in fact, described as miniature shovels or referred to as hand spades.