a long novel, often in a number of volumes, dealing with a cross section of society, several generations of a family, etc.
Origin of roman-fleuveFr, river novel
A long novel, often in many volumes, chronicling the history of several generations of a family, community, or other group and often presenting an overall view of society during a particular epoch. Also called saga novel.
Origin of roman-fleuveFrench : roman, novel + fleuve, river.