Word Study
xanthidium
CIDE DICTIONARY
xanthidium, n. [NL., fr. Gr. xanqo`s yellow.].
A genus of minute unicellular algæ of the desmids. These algæ have a rounded shape and are armed with glochidiate or branched aculei. Several species occur in ditches, and others are found fossil in flint or hornstone. [1913 Webster]
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