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.
Three civilians were killed in the bombing: Krystle Marie Campbell (29), a restaurant manager from Medford, Massachusetts; LÃ¼ Lingzi (Chinese: åä»¤å­) (23), a Chinese national and Boston University graduate student from Shenyang, Liaoning; and 8-year old Martin William Richard from the Dorchester neighborhood of Boston, who was killed by the second bomb.