plural noun

Definition of Palaeodictyoptera 

: an order of very primitive extinct insects known only from the Upper Carboniferous and Permian periods and characterized by homonomous segmentation of the thorax and abdomen and by a simple wing venation with a network of cross veins

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Other Words from Palaeodictyoptera

palaeodictyopteran \¦⸗⸗⸗¦⸗⸗¦⸗tərən \ adjective or noun
palaeodictyopterous \-​rəs \ adjective

History and Etymology for Palaeodictyoptera

New Latin, from pale- + dicty- + -ptera

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living or existing for a long time

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