mat·ri·lin·e·al 
(măt′rə-lĭnē-əl)
(măt′rə-lĭnē-əl)adj.
Relating to, based on, or tracing ancestral descent through the maternal line.
mat′ri·line·al·ly adv.
- extrachromosomal
- extracode
- extraconstitutional
- extracorporeal
- extracorporeally
- extracranial
- extract
- extractable
- extractible
- extraction
- extractive
- extractively
- extractor
- extracurricular
- extraditable
- extradite
- extradition
- extrados
- extraembryonic
- extragalactic
- extrahepatic
- extra-high voltage
- extrajudicial
- extrajudicially
- extralegal