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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. |
tin (tĭn)
n.
Symbol Sn
A malleable metallic element used to coat other metals to prevent corrosion. Atomic number 50; atomic weight 118.71; melting point 231.89°C; boiling point 2,602°C; specific gravity 7.31; valence 2, 4.
| tin (tĭn) Pronunciation Key
Symbol Sn A malleable, silvery metallic element that occurs in igneous rocks. It has a crystalline structure and crackles when bent. Tin is used as an anticorrosion agent and is a part of numerous alloys, including bronze. Atomic number 50; atomic weight 118.71; melting point 231.89°C; boiling point 2,270°C; specific gravity 7.31; valence 2, 4. See Periodic Table. See Note at element. |