Irish diamond
noun
(A piece of) rock crystal (from Ireland); (formerly also) †marcasite (obsolete ).
Origin
Late 18th century.
- irrefutably
- irreg.
- irregardless
- irregular
- irregularity
- irregularly
- irregular verb
- irrelative
- irrelatively
- irrelevance
- irrelevancy
- irrelevant
- irrelevantly
- irreligion
- irreligionist
- irreligious
- irreligiously
- irreligiousness
- irremediable
- irremediably
- irremissible
- irremovability
- irremovable
- irremovably
- irreparability