petrogram [pe-truh-gram] WORD ORIGIN noun a drawing or painting on rock, especially one made by a member of a prehistoric people. Liberaldictionary.com
What It Really Means to Call Someone “Crude” Can You Translate These Famous Phrases From Emoji? These Are the Longest Words in English These Are the Saddest Phrases in English Origin of petrogram petro-1 + -gram1 Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
仿阴山石刻 (copying petrogram on yinshan) by huang yongyu
Book Online at Low Prices in India | Symbol, Script and Writing (From Petrogram to Printing and Further.
Petroglyphs carved in rocks by the Navajo and Hopi native American tribes.
Petro pg1
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