Opegrapha

noun
Opeg·​ra·​pha | \ ōˈpegrəfə\

Definition of Opegrapha

: a genus of crustaceous lichens occurring chiefly on bark and forming markings like writing or hieroglyphics

History and Etymology for Opegrapha

New Latin, from Greek opē hole, opening (akin to Greek ōp-, ōps) + graphē writing, from graphein to write

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