Definition that contains red algae
- class rhodophyceae coextensive with the Rhodophyta: red algae
- sea moss any of various red algae having graceful rose to purple fronds (e.g. dulse or carrageen)
- carrageenan a colloidal extract from carrageen seaweed and other red algae
- phycobilin water-soluble proteinaceous pigments found in red algae and cyanobacteria
- carrageenin a colloidal extract from carrageen seaweed and other red algae
- phycoerythrin red pigment in red algae
- chlorophyll d the chlorophyll found (together with chlorophyll a) in red algae
- rhodophyceae coextensive with the Rhodophyta: red algae
- carpospore a nonmotile spore of red algae