adjective di·a·dac·tic \¦dīə¦daktik\

Definition of diadactic


  1. :  having reference to a bedding sequence in sediments or sedimentary rocks that is characterized by the repetition of a pair of unlike laminae the diadactic structure of varved clay

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Origin and Etymology of diadactic

1diad + -actic (as in syntactic)

Seen and Heard

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feeling or affected by lethargy

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