Irish diamond
noun
(A piece of) rock crystal (from Ireland); (formerly also) †marcasite (obsolete ).
Origin
Late 18th century.
- High Dutchman
- high-duty
- high-end
- high enema
- Higher
- higher animals
- Higher Certificate
- higher class
- higher command
- higher court
- higher critic
- higher criticism
- higher education
- higher-grade
- higher ground
- higher law
- higher learning
- higher-level
- higher mathematics
- highermost
- higher-order
- higher plants
- higher-ranking
- Higher School Certificate
- Higher Thought