plural noun
Gig·​ar·​ti·​na·​les | \ -ā(ˌ)lēz\

Definition of Gigartinales

: an order of red algae (subclass Florideae) in which the auxiliary cell arises as a vegetative cell of the gametophyte prior to fertilization — see gigartinaceae

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History and Etymology for Gigartinales

New Latin, from Gigartina + -ales

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