释义 |
Definition of osmium in English: osmiumnoun ˈɒzmɪəmˈɑzmiəm mass nounThe chemical element of atomic number 76, a hard, dense silvery-white metal of the transition series. Example sentencesExamples - Other examples of relative isotopic dating are the deuterium variations in ice cores and the osmium isotope record of marine sediments.
- Along with osmium and platinum, iridium is one of the densest elements in the periodic table: two cubic feet of it weigh as much as a Buick.
- The addition of small amounts of osmium to these metals greatly increases their hardness.
- Scientists speculate that the asteroids would probably be very rich in minerals with a very high melting point, such as iron and nickel or rarer metals like tungsten, osmium, and zirconium.
- With the exception of two of the platinum-group metals, osmium and iridium, they have the highest melting temperatures and lowest vapor pressures of all metals.
Origin Early 19th century: modern Latin, from Greek osmē 'smell' (from the pungent smell of its tetroxide). Definition of osmium in US English: osmiumnounˈɑzmiəmˈäzmēəm The chemical element of atomic number 76, a hard, dense silvery-white metal of the transition series. Example sentencesExamples - The addition of small amounts of osmium to these metals greatly increases their hardness.
- Along with osmium and platinum, iridium is one of the densest elements in the periodic table: two cubic feet of it weigh as much as a Buick.
- With the exception of two of the platinum-group metals, osmium and iridium, they have the highest melting temperatures and lowest vapor pressures of all metals.
- Other examples of relative isotopic dating are the deuterium variations in ice cores and the osmium isotope record of marine sediments.
- Scientists speculate that the asteroids would probably be very rich in minerals with a very high melting point, such as iron and nickel or rarer metals like tungsten, osmium, and zirconium.
Origin Early 19th century: modern Latin, from Greek osmē ‘smell’ (from the pungent smell of its tetroxide). |