http://www.merriam-webster.com/dictionary/blood http://www.merriam-webster.com/dictionary/blood blood http://www.merriam-webster.com/dictionary/blood http://www.merriam-webster.com/dictionary/blood a : lifeblood; broadly : life http://www.merriam-webster.com/dictionary/blood http://www.merriam-webster.com/dictionary/blood d : persons related through common descent : kindred