stemma in WordNet English dictionary

1. the descendants of one individual
   "his entire lineage has been warriors"
   lineage  line  line of descent  descent  bloodline  blood line  blood  pedigree  ancestry  origin  parentage  stemma  stock 
   
2. an eye having a single lens
   simple eye  stemma  ocellus 
   
3. a tree diagram showing a reconstruction of the transmission of manuscripts of a literary work
   stemma