Irish diamond
noun
(A piece of) rock crystal (from Ireland); (formerly also) †marcasite (obsolete ).
Origin
Late 18th century.
- photocell
- photoceramic
- photo-ceramist
- photocharger
- photocharging
- photochemic
- photochemical
- photochemically
- photochemical smog
- photochemist
- photochemistry
- photochemotherapy
- photochrom
- photochromatic
- photochromatic interval
- photochrome
- photochromic
- photochromicity
- photochromics
- photochromism
- photo-chromolithograph
- photochromoscope
- photochromotype
- photochromy
- photochronograph