plural noun
Chor·dar·i·a·les | \(ˌ)kȯrˌdarēˈā(ˌ)lēz\

Definition of Chordariales 

: an order of brown algae (class Heterogeneratae) having a branched filamentous sporophyte that is not markedly compacted with a pseudoparenchymatous mass

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History and Etymology for Chordariales

New Latin, from Chordaria genus of algae (from chord- + -aria) + -ales

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