sea moss noun 9forms 1 noun9 •Any marine organism resembling moss •Any such branched marine bryozoan •Certain red algae. •Chondrus crispus (Irish moss, carrageen moss) •Endocladia muricata (turfweed, nailbrush seaweed) •Kappaphycus alvarezii (elkhorn sea moss) •Palmaria palmata (dulse) •Certain green algae. •Bryopsis africana, a green alga formssea mosses
