- free nuclear stage
- noun
: an early stage in the development of a female gametophyte or an embryo of most gymnosperms in which repeated nuclear divisions occur without cell-wall formation
Useful english dictionary. 2012.
Useful english dictionary. 2012.
Nuclear thermal rocket — Sketch of nuclear thermal rocket … Wikipedia
Nuclear reprocessing — technology was developed to chemically separate and recover fissionable plutonium from irradiated nuclear fuel.[1] Reprocessing serves multiple purposes, whose relative importance has changed over time. Originally reprocessing was used solely to… … Wikipedia
Nuclear safety — covers the actions taken to prevent nuclear and radiation accidents or to limit their consequences. This covers nuclear power plants as well as all other nuclear facilities, the transportation of nuclear materials, and the use and storage of… … Wikipedia
Nuclear chemistry — is the subfield of chemistry dealing with radioactivity, nuclear processes and nuclear properties. It is the chemistry of radioactive elements such as the actinides, radium and radon together with the chemistry associated with equipment (such as… … Wikipedia
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Nuclear weapon design — The first nuclear weapons, though large, cumbersome and inefficient, provided the basic design building blocks of all future weapons. Here the Gadget device is prepared for the first nuclear test: Trinity. Nuclear weapon designs are physical,… … Wikipedia
nuclear weapon — an explosive device whose destructive potential derives from the release of energy that accompanies the splitting or combining of atomic nuclei. [1945 50] * * * or atomic weapon or thermonuclear weapon Bomb or other warhead that derives its force … Universalium
Nuclear program of Iran — See also: Iran and weapons of mass destruction Nuclear program of Iran … Wikipedia
Nuclear weapons and Israel — Israel Nuclear program start date mid to late 1950s[1] First nuclear weapon test Unknown; possible join … Wikipedia
Nuclear weapon — A bomb redirects here. For other uses, see A bomb (disambiguation). The mushroom cloud of the atomic bombing of Nagasaki, Japan on August 9, 1945 … Wikipedia