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.
- systematically
- systematics
- systematism
- systematist
- systematization
- systematize
- systematizer
- systemic
- systemically
- systemic circulation
- systemic lupus erythematosus
- systemization
- systemize
- systemizer
- system operator
- systems analysis
- systems analyst
- systems biology
- systems programming
- systole
- systolic
- systolic pressure
- syzygial
- syzygy
- Szczecin