plural noun Gym·no·din·i·a·les \-ā(ˌ)lēz\

Definition of Gymnodiniales

  1. :  an order of greenish brown algae (class Dinophyceae) having no cell wall but often a firm periplast that is longitudinally striated and comprising the naked dinoflagellates — compare peridiniales

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Origin and Etymology of gymnodiniales

New Latin, from Gymnodinium + -ales

Seen and Heard

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a rounded knoll or a ridge of ice

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