arrangement arranging
transcription | the act of arranging and adapting a piece of music |
atom bomb
atomic bomb
A-bomb
fission bomb
plutonium bomb | a nuclear weapon in which enormous energy is released by nuclear fission (splitting the nuclei of a heavy element like uranium or plutonium ) |
| atomic clock | a timepiece that derives its time scale from the vibration of atoms or molecules |
| atomic cocktail | an oral dose of radioactive substance used in treatment and diagnosis of cancer |
atomic pile
atomic reactor
pile
chain reactor | a nuclear reactor that uses controlled nuclear fission to generate energy |
atomic warhead
nuclear warhead
thermonuclear warhead
nuke | the warhead of a missile designed to deliver an atom bomb |
flower arrangement
floral arrangement | a decorative arrangement of flowers |
nuclear weapon
atomic weapon | a weapon of mass destruction whose explosive power derives from a nuclear reaction |
atomic mass
atomic weight
relative atomic mass | (chemistry) the mass of an atom of a chemical element expressed in atomic mass units |
temporal arrangement
temporal order | arrangement of events in time |
placement
arrangement | the spatial property of the way in which something is placed, the arrangement of the furniture, the placement of the chairs |
spacing
spatial arrangement | the property possessed by an array of things that have space between them |
arrangement
organization
organisation
system | an organized structure for arranging or classifying, he changed the arrangement of the topics, the facts were familiar but it was in the organization of them that he was original, he tried to understand their system of classification |
| living arrangement | an arrangement to allow people (or ideas) to coexist |
agreement
arrangement | the thing arranged or agreed to, they made arrangements to meet in Chicago |
nuclear physics
atomic physics
nucleonics | the branch of physics that studies the internal structure of atomic nuclei |
atomism
atomic theory
atomist theory
atomistic theory | (chemistry) any theory in which all matter is composed of tiny discrete finite indivisible indestructible particles, the ancient Greek philosophers Democritus and Epicurus held atomic theories of the universe |
| atomic theory | a theory of the structure of the atom |
musical arrangement
arrangement | a piece of music that has been adapted for performance by a particular set of voices or instruments |
nuclear explosion
atomic explosion | the explosion of an atomic bomb |
| arrangement | an orderly grouping (of things or persons) considered as a unit, the result of arranging, a flower arrangement |
Atomic Energy Commission
AEC | a former executive agency (from to ) that was responsible for research into atomic energy and its peacetime uses in the United States |
International Atomic Energy Agency
IAEA | the United Nations agency concerned with atomic energy |
atomic energy
nuclear energy | the energy released by a nuclear reaction |
atomic power
nuclear power | nuclear energy regarded as a source of electricity for the power grid (for civilian use) |
| atomic spectrum | (physics) a spectrum of radiation caused by electron transitions within an atom, the series of spectrum lines is characteristic of the element |
| atomic number | the order of an element in Mendeleyev's table of the elements, equal to the number of protons in the nucleus or electrons in the neutral state of an atom of an element |
| atomic mass unit | unit of mass for expressing masses of atoms or molecules |
gram atom
gram-atomic weight | the quantity of an element whose weight in grams is numerically equal to the atomic weight of the element |
actinium
Ac
atomic number | a radioactive element of the actinide series, found in uranium ores |
aluminum
aluminium
Al
atomic number | a silvery ductile metallic element found primarily in bauxite |
americium
Am
atomic number | a radioactive transuranic metallic element, discovered by bombarding uranium with helium atoms |
antimony
Sb
atomic number | a metallic element having four allotropic forms, used in a wide variety of alloys, found in stibnite |
argon
Ar
atomic number | a colorless and odorless inert gas, one of the six inert gases, comprises approximately % of the earth's atmosphere |
arsenic
As
atomic number | a very poisonous metallic element that has three allotropic forms, arsenic and arsenic compounds are used as herbicides and insecticides and various alloys, found in arsenopyrite and orpiment and realgar |
astatine
At
atomic number | a highly unstable radioactive element (the heaviest of the halogen series), a decay product of uranium and thorium |
barium
Ba
atomic number | a soft silvery metallic element of the alkali earth group, found in barite |
berkelium
Bk
atomic number | a radioactive transuranic element, discovered by bombarding americium with helium |
beryllium
Be
glucinium
atomic number | a light strong brittle grey toxic bivalent metallic element |
bismuth
Bi
atomic number | a heavy brittle diamagnetic trivalent metallic element (resembles arsenic and antimony chemically), usually recovered as a by-product from ores of other metals |
bohrium
Bh
element
atomic number | a transuranic element |
boron
B
atomic number | a trivalent metalloid element, occurs both in a hard black crystal and in the form of a yellow or brown powder |
bromine
Br
atomic number | a nonmetallic heavy volatile corrosive dark brown liquid element belonging to the halogens, found in sea water |
cadmium
Cd
atomic number | a soft bluish-white ductile malleable toxic bivalent metallic element, occurs in association with zinc ores |
calcium
Ca
atomic number | a white metallic element that burns with a brilliant light, the fifth most abundant element in the earth's crust, an important component of most plants and animals |
californium
Cf
atomic number | a radioactive transuranic element, discovered by bombarding curium with alpha particles |
carbon
C
atomic number | an abundant nonmetallic tetravalent element occurring in three allotropic forms: amorphous carbon and graphite and diamond, occurs in all organic compounds |
cerium
Ce
atomic number | a ductile grey metallic element of the lanthanide series, used in lighter flints, the most abundant of the rare-earth group |
cesium
caesium
Cs
atomic number | a soft silver-white ductile metallic element (liquid at normal temperatures), the most electropositive and alkaline metal |
chlorine
Cl
atomic number | a common nonmetallic element belonging to the halogens, best known as a heavy yellow irritating toxic gas, used to purify water and as a bleaching agent and disinfectant, occurs naturally only as a salt (as in sea water) |