noun Etymology: New Latin, from Latin irid-, iris; from the colors produced by its dissolving in hydrochloric acid Date: 1804 a rare silver-white hard brittle very heavy metallic element
IRIDIUM
Meaning of IRIDIUM in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012