☿ial en · ADJ Meanings (abbreviation, alt-of, not-comparable) Abbreviation of mercurial. alt of mercurial make a light dew of ☿ial vapour arise. c. 1653-1656, George Starkey, translated by William R. Newman, Lawrence M. Principe, Alchemical Laboratory Notebooks and Correspondence, University of Chicago Press, published 2004, page 24: Forms SpellingFeaturesLabelsSource ☿all alternative lexicographic