Irish Moss
a seaweed very common on rocky coasts, and especially abundant on the W. side of Ireland. It is used as a substitute for arrow root.
IRISH PRESBYTERIAN CHURCH, a Presbyterian Church, formerly called on the N. It is connected with the Atlantic on the N. W. by the North Channel and on the S. by St. George's Channel. Between the coasts of Louth (Ireland) and Lancaster the Irish Sea has a width of 150 miles; its greatest length N. and S. is about the same. and Anglesey, with Holyhead Island.
Within its boundaries lie the Isle of Man (STAI-DLI-I