Definition of petrograph in English:

petrograph

noun ˈpɛtrə(ʊ)ɡrɑːfˈpɛtrə(ʊ)ɡraf

Early 19th century; earliest use found in Robert Southey (1774–1843), poet and reviewer. From petro- + -graph.

noun

Early 19th century; earliest use found in Robert Southey (1774–1843), poet and reviewer. From petro- + -graph.

单词	petrograph
释义	Definition of petrograph in English: petrograph noun ˈpɛtrə(ʊ)ɡrɑːfˈpɛtrə(ʊ)ɡraf A carving, especially writing, upon a rock; a rock inscription. Origin Early 19th century; earliest use found in Robert Southey (1774–1843), poet and reviewer. From petro- + -graph. Definition of petrograph in US English: petrograph noun A carving, especially writing, upon a rock; a rock inscription. Origin Early 19th century; earliest use found in Robert Southey (1774–1843), poet and reviewer. From petro- + -graph.
随便看	at one's mother's (or father's) knee at one's mother's (or father's) knee at one's (own) risk at one's own risk at one's (own) risk at one's peril at one's peril at one's pleasure at one's risk at one stroke at one's wit's end at one's wits' end at one time at one time atonic atonicities atonicity atonies atoning a ton of a ton of/tons of a ton of/tons of atony atony a too far