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n. Symbol Es
A synthetic transuranic element first produced by neutron irradiation of uranium in a thermonuclear explosion and now usually produced in the laboratory by irradiating plutonium and other elements. The isotopes with the longest half-lives are Es-252 (472 days) and Es-254 (276 days). Atomic number 99; melting point 860°C (estimated); valence 2, 3. See Periodic Table.

[After Albert Einstein.]


(Elements & Compounds) a metallic transuranic element artificially produced from plutonium. Symbol: Es; atomic no: 99; half-life of most stable isotope, 252Es: 276 days
[C20: New Latin, named after Albert Einstein]


(aɪnˈstaɪ ni əm)

a transuranic element. Symbol: Es; at. no.: 99.
[1950–55; after Albert Einstein; see -ium2]


Symbol Es A synthetic, radioactive metallic element of the actinide series that is usually produced by bombarding plutonium or another element with neutrons. The most stable isotope of einsteinium has a half-life of 1.3 years. Atomic number 99. See Periodic Table.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.einsteinium - a radioactive transuranic element produced by bombarding plutonium with neutronseinsteinium - a radioactive transuranic element produced by bombarding plutonium with neutrons
metal, metallic element - any of several chemical elements that are usually shiny solids that conduct heat or electricity and can be formed into sheets etc.
References in periodicals archive ?
They were, Curium - (Marie & Pierre Curie); Californium - (first produced in California); Einsteinium - (Albert); Fermium - (Enrico Fermi, Physicist); Mendelevium - (Dmitri Mendeleev); Bohrium - (Neils Bohr, Atomic Physicist); Dubnium - (named after a Russian Town of Dubnia); Tennessine - (Discovered in the National Laboratory of Tennessee).
In the beginning of the twentieth century, science advanced exponentially with the extraordinary discoveries in the field of the Einsteinium physics, with a scientific revolution that changed the rooted Newtonian paradigms of the time.
Included amongst its many Einsteinium nuggets of wisdom were recommendations that seriously disabled veterans (the definition of "serious" being anyone's guess) receive benefits for life, reservist veterans receive the same benefits and support as their regular force counterparts, spouses and family of veterans be extended the same vocational and psychological support, care givers be provided with financial support, and the military to stop cutting its personnel loose before there is proper support in place with Veterans Affairs.