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.
For the baseball event nicknamed the Boston Massacre, see Yankees â Red Sox rivalry. The Boston Massacre, known as the Incident on King Street by the British, was an incident on March 5, 1770, in which British Army soldiers killed five male civilians and injured six others.