Gelidiales
plural noun
Ge·lid·i·a·les
| \ jəˌlidēˈā(ˌ)lēz \
Definition of Gelidiales
: a small order of red algae (subclass Florideae) containing a single family and including Gelidium and a few related genera that are sometimes placed in Nemalionales
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Merriam-Webster unabridged
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