Meanings
nounpetrogr. (uncountable)
- abbreviationuncountableAbbreviation of petrography.
Add: 4. Petrogr. A macroscopically visible constituent of coal distinguished by its physical characteristics; a macroscopically distinguishable variety of coal. Cf. maceral n.
1997: Oxford English Dictionary, lithotype, n. (additions series 1997)Synonyms: petrog
Synonyms & antonyms
Cite this entry
APA
petrogr.. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/petrogr.
MLA
“petrogr..” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/petrogr.. Accessed November 3, 2026.
Chicago
WatkinsX Dictionary, s.v. “petrogr.,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/petrogr..
Source: petrogr. on Wiktionary, CC BY-SA 4.0.