empyrical

English

Etymology

From Ancient Greek [Term?] (“in fire”). See empyreal.

Adjective

empyrical (not comparable)

  1. Containing the combustible principle of coal.
    • 1796, Richard Kirwan, The Manures Most Advantageously Applicable to the Various Sorts of Soils:
      , if it be rich , they will not extend above five or six inches ; but of these and some other empyrical marks , I shall say no more , as they do not tell us the defects of the soils

References

“empyrical”, in Webster’s Revised Unabridged Dictionary, Springfield, Mass.: G. & C. Merriam, 1913, →OCLC.

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