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.
What was the role of Crispus Attucks in the American Revolution? The African-Native American man who was the first man to die in the Boston Massacre, also considered the first death in the Revolutionary War