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| a calculus or concretion found in the stomach or intestines of certain animals, esp. ruminants, formerly reputed to be an effective remedy for poison. |
| an arrangement of five objects, as trees, in a square or rectangle, one at each corner and one in the middle. |
| iron (ˈaɪən) | |
| —n | |
| 1. | a. steel cast iron wrought iron See also pig iron a malleable ductile silvery-white ferromagnetic metallic element occurring principally in haematite and magnetite. It is widely used for structural and engineering purposes. Symbol: Fe; atomic no: 26; atomic wt: 55.847; valency: 2,3,4, or 6; relative density: 7.874; melting pt: 1538°C; boiling pt: 2862°CRelated: ferric, ferrous, ferro- |
| b. (as modifier): iron railings | |
| 2. | any of certain tools or implements made of iron or steel, esp for use when hot: a grappling iron; a soldering iron |
| 3. | an appliance for pressing fabrics using dry heat or steam, esp a small electrically heated device with a handle and a weighted flat bottom |
| 4. | any of various golf clubs with narrow metal heads, numbered from 1 to 9 according to the slant of the face, used esp for approach shots: a No. 6 iron |
| 5. | an informal word for harpoon |
| 6. | slang (US) a splintlike support for a malformed leg |
| 7. | great hardness, strength, or resolve: a will of iron |
| 8. | astronomy short for iron meteorite |
| 9. | See shooting iron |
| 10. | strike while the iron is hot to act at an opportune moment |
| —adj | |
| 11. | very hard, immovable, or implacable: iron determination |
| 12. | very strong; extremely robust: an iron constitution |
| 13. | cruel or unyielding: he ruled with an iron hand |
| 14. | an iron fist See also velvet a cruel and unyielding attitude or approach |
| —vb | |
| 15. | to smooth (clothes or fabric) by removing (creases or wrinkles) using a heated iron; press |
| 16. | (tr) to furnish or clothe with iron |
| 17. | rare (tr) to place (a prisoner) in irons |
| Related: ferric, ferrous, ferro- | |
| [Old English irēn; related to Old High German īsan, Old Norse jārn; compare Old Irish īarn] | |
| 'ironer | |
| —n | |
| 'ironless | |
| —adj | |
| 'ironlike | |
| —adj | |