noun
or car·ra·gheen also car·a·geen ˈkarəˌgēn, ˌ ̷ ̷ ̷ ̷ˈ ̷ ̷
( -s )
Etymology: from Carragheen, near Waterford, Ireland
1. : a dark purple branching cartilaginous seaweed ( Chondrus crispus ) found on the coasts of northern Europe and No. America — compare irish moss
2. : carrageenin