Freebase(0.00 / 0 votes)Rate this definition: Hydraulic conductivity. Hydraulic conductivity, symbolically represented as, is a property of vascular plants, soil or rock, that describes the ease with which a fluid can move through pore spaces or fractures.
Crispus Attucks was an African-American man killed during the Boston Massacre, making him the first casualty of the American Revolution.
Many Boston Massacre facts focus on the victims, including the five that were killed and six that were injured. All victims were civilians who were part of the crowd. The five people who were killed were Crispus Attucks, Samuel Gray, Patrick Carr, Samuel Maverick and James Caldwell.