septarium /sep-tāˈri-əm/

A nodule of mineral substance with a network of cracks filled with another mineral

• synkaryons
• synod
• synodal
• synodals
• synodic
• synodical
• synodically
• synodic month
• synodic period
• synodic periods
• synods
• synodsman
• synodsmen
• synoecete
• synoecetes
• synoecioses
• synoeciosis
• synoecious
• synoecise
• synoecised
• synoecises
• synoecising
• synoecism
• synoecisms
• synoecize