Petrogr.

noun

noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    Abbreviation of petrography. abbreviation, alt-of, uncountable

    "Add: 4. Petrogr. A macroscopically visible constituent of coal distinguished by its physical characteristics; a macroscopically distinguishable variety of coal. Cf. maceral n."

Synonyms

All synonyms
petrog

Example

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"Add: 4. Petrogr. A macroscopically visible constituent of coal distinguished by its physical characteristics; a macroscopically distinguishable variety of coal. Cf. maceral n."

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.