from The American Heritage® Dictionary of the English Language, 5th Edition.
- noun Any of various predominantly tropical marine algae of the division Rhodophyta, characteristically red or reddish in color. Red algae are important as a food source and in reef building.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun Any
marinealga, of the phylum Rhodophyta, that are mostly reddishin colour
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