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iridium a chemical element that has seventy-seven protons in each nucleus and that occurs as a lustrous yellowish white, extremely hard, dense, and corrosion-resistant metal, used as a hardening alloy, esp. with precious metals. (symbol: Ir)
iris the colored, round membrane surrounding the pupil of the eye. [2 definitions]
Irish of or pertaining to Ireland or its people, culture, language, or the like. [3 definitions]
Irish coffee sweetened hot coffee flavored with Irish whiskey and topped with whipped cream.
Irish Gaelic the Gaelic language spoken in Ireland.
Irish moss a purplish-brown seaweed found along the Atlantic coasts of Europe and North America; carrageen.
Irish potato the white potato, widely grown in Ireland.
Irish setter one of a breed of setters having a silky, auburn, long-haired coat.
Irish stew a stew of meat such as mutton or beef, with potatoes, onions, and a thick, brown gravy.
Irish terrier a large terrier with a thick, wiry, reddish brown coat.
Irish wolfhound a tall, slim, strong dog with a rough shaggy coat in shades ranging from white to mixtures of dark gray, and a head shaped like a terrier's.
irk to annoy, irritate, or exasperate.
irksome causing annoyance; bothersome or tiresome.
iron a chemical element that has twenty-six protons in each nucleus and that occurs naturally in a variety of compounds such as minerals important in the earth's crust as well as the biologically essential cytochromes and hemoglobin, and that can be isolated in pure form as a silver-white dense malleable metal that rusts rapidly in air, can be easily magnetized, and is widely used in a variety of alloys. (symbol: Fe) [16 definitions]
Iron Age the stage or level of development of human culture that followed the Bronze Age and that was characterized by the use of iron tools and weapons, beginning about 1000 B.C.
ironbound as though bound with iron; stern or rigid. [2 definitions]
ironclad as though covered in iron armor; unbreakable and inflexible. [3 definitions]
iron curtain (sometimes cap.) the barrier to free communication and exchange of information which was attributed by Western nations to the secrecy and censorship of the Soviet Union after World War II.
iron hand harsh or tight control, as by a despot.
ironic being, showing, pertaining to, or marked by irony. [2 definitions]
ironically in an ironic manner. [2 definitions]