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Definition of petroglyph
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perfunctory
Definition: (adjective) unenthusiastic, routine, or mechanical.
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< petrogenesis
Petrograd >
pet·ro·glyph
(p
t
r
-gl
f
)
KEY
NOUN:
A carving or line drawing on rock, especially one made by prehistoric people.
OTHER FORMS:
pet
ro·glyph
ic
(Adjective)
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