| ruth | 1. Sorrow for the misery of another; pity; tenderness. "They weep for ruth." "Have ruth of the poor." "To stir up gentle ruth, Both for her noble blood, and for her tender youth." (Spenser) 2. That which causes pity or compassion; misery; distress; a pitiful. "It had been hard this ruth for to see." (Chaucer) "With wretched miseries and woeful ruth." (Spenser) Origin: From Rue,: cf. Icel. Hryggth, hrygth. Source: Websters Dictionary (01 Mar 1998) |
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| ruthenic | <chemistry> Pertaining to, or containing, ruthenium; specifically, designating those compounds in which it has a higher valence as contrasted with ruthenious compounds. Source: Websters Dictionary (01 Mar 1998) |
| ruthenious | <chemistry> Pertaining to, or containing, ruthenium; designating those compounds in which it has a lower valence as contrasted with ruthenic compounds. Source: Websters Dictionary (01 Mar 1998) |
| ruthenium | <chemistry, element> A rare element of the light platinum group, found associated with platinum ores, and isolated as a hard, brittle steel-gray metal which is very infusible. Specific gravity 12.26. See Platinum metals, under Platinum. Atomic weight: 103.5 Abbreviation: Ru Origin: NL. So named from the Ruthenians, a Little Russian people, as coming from Russia, the metal having been found in the Ural mountains. (30 Mar 1998) |
| ruthenium compounds | Inorganic compounds that contain ruthenium as an integral part of the molecule. (12 Dec 1998) |
| ruthenium radioisotopes | Unstable isotopes of ruthenium that decay or disintegrate emitting radiation. Ru atoms with atomic weights 93-95, 97, 103, and 105-108 are radioactive ruthenium isotopes. (12 Dec 1998) |
| ruthenium red | <chemical> A stain used in electron microscopy for acid mucopolysaccharides on the outer surfaces of cells. (17 Dec 1997) |
| rutherford | An obsolete term for a unit of radioactivity, representing that quantity of radioactive material in which a million disintegrations are taking place per second; 37 rutherford equal 1 mCi. See: Becquerel. Origin: Ernest Rutherford, British physicist and Nobel laureate, 1871-1937 (05 Mar 2000) |
Synonyms :
Synonyms : Compounds, Ruthenium
Synonyms : Radioisotopes, Ruthenium
Synonyms : Oxychloride, Ammoniated Ruthenium, Red, Ruthenium, Ruthenium Oxychloride, Ammoniated
| ruthenium |
a rare polyvalent metallic element of the platinum group; it is found associated with platinum
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| rutherford |
a unit strength of a radioactive source equal to one million disintegrations per second British chemist who isolated nitrogen (1749-1819) British physicist (born in New Zealand) who discovered the atomic nucleus and proposed a nuclear model of the atom (1871-1937)
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| Rutherford atom |
first modern concept of atomic structure; all of the positive charge and most of the mass of the atom are contained in a compact nucleus; a number of electrons (equal to the atomic number) occupy the rest of the volume of the atom and neutralize the positive charge
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| rutherfordium |
a radioactive transuranic element which has been synthesized
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| rutherford |
(1871-1937) NZ scientist. Split the atom in 1918. Although a physicist he was awarded the Nobel Prize for Chemistry in 1908. When asked how he came into physics, he replied "When I was a little boy in my native New Zealand I was charged with the tending of sheep and one day when things were quiet I picked up a stick and put it into a pond of water, and it was bent - and when I pulled it out it was straight - and when I put it into the water again it was bent again! ...
Ãâó: www.embassy.org.nz/encycl/r5encyc.htm
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| ruth | a book of the Old Testament that tells the story of Ruth who was not an Israelite but who married and Israelite and who stayed with her mother-in-law Naomi after her husband died |
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| ruth | the great-grandmother of King David whose story is told in the Book of Ruth in the Old Testament |
| ruth | American professional baseball player famous for hitting home runs (1895-1948) |
| ruth | a feeling of sympathy and sorrow for the misfortunes of others |
| ruth | American anthropologist (1887-1948) |
| ruth | American anthropologist (1887-1948) |
| ruth | United States dancer and choreographer who collaborated with Ted Shawn (1877-1968) |
| ruth | United States dancer and choreographer who collaborated with Ted Shawn (1877-1968) |
| ruth | a rare polyvalent metallic element of the platinum group |
| ruth | British physicist (born in New Zealand) who discovered the atomic nucleus and proposed a nuclear model of the atom (1871-1937) |
| ruth | British chemist who isolated nitrogen (1749-1819) |
| ruth | a unit strength of a radioactive source equal to one million disintegrations per second |
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