| heat of fusion | <chemistry> The enthalpy change that occurs to melt a solid at its melting point. (09 Jan 1998) |
|---|---|
| spinal fusion | A procedure that involves fusing together two or more vertebrae in the spine using either bone grafts or metal rods (Harrington rods). This procedure may be used to correct kyphosis or scoliosis. It is also used in those who require spine stabilisation due to vertebral damage from ruptures discs, fractures, osteomyelitis, osteoarthritis or tumour. (27 Sep 1997) |
| spin-polarized fusion | <radiobiology> A method to enhance nuclear fusion reaction rates in some fusion fuels by polarizing the nuclear spins. (09 Oct 1997) |
| splenogonadal fusion | The formation of a mass consisting of splenic and testicular or ovarian tissue. (05 Mar 2000) |
| nuclear fusion | Thermonuclear reaction in which the nuclei of an element of low atomic weight unite under extremely high temperature and pressure to form a nucleus of a heavier atom. (12 Dec 1998) |
| impact fusion | <radiobiology> Fusion approach where a fuel projectile is acclerated and impacted into either a stationary target or another projectile. This is valuable for scientific purposes but not a candidate for a fusion energy source because the likelihood of fusion occurring in a single collision is too low. Multiple accelerated pellets colliding with spherical symmetry might be a viable inertial confinement approach. An impact fusion driver accelerates the macroparticles and is used in inertial confinement fusion. (13 Nov 1997) |
| inertial confinement fusion | <radiobiology> Approach to fusion where the plasma is imploded so quickly that the inertia of the converging particles is so high that many fuse before they disperse. This is the method used in a hydrogen bomb, ICF schemes for power production usually use small pellets of fuel in an attempt to make miniature h-bomb type explosions. Methods for imploding the pellet include bombardment from all sides with high-powered laser and particle beams, and of course implosion in a fission bomb. Parts of ICF fusion research remain classified due to their military implications and applications, though much ICF research was recently declassified. (09 Oct 1997) |
| oncogene proteins, fusion | The translation products of the fusion between an oncogene and another gene. The latter may be of viral or cellular origin. (12 Dec 1998) |
| thermonuclear fusion | <radiobiology> Fusion achieved by heating the fuel into the plasma state to the point where ions have sufficient energy to fuse. Also used to characterise fusion between thermal ions as opposed to fusion involving injected beam ions. (09 Oct 1997) |
| tokamak fusion test reactor | <radiobiology> Large tokamak at Princeton, first machine to use 50-50 mix of D-T fuel, current world's record holder in fusion energy production. Largest tokamak in the United States. (09 Oct 1997) |
| enthalpy of fusion | <chemistry> The enthalpy change that occurs to melt a solid at its melting point. Synonym: heat of fusion. (09 Jan 1998) |
| flicker fusion | The point or frequency at which all flicker of an intermittent light stimulus disappears. (12 Dec 1998) |
| flicker fusion frequency technique | A technique of perimetry using the criterion of critical fusion frequency. Synonym: flicker fusion frequency technique. (05 Mar 2000) |
| laser fusion | <radiobiology> Form of inertial confinement fusion where laser beams are used to compress and heat the fuel pellet. (09 Oct 1997) |
| fusion | <radiobiology> A nuclear reaction in which light atomic nuclei combine to form heavier nuclei, typically accompanied by the release of energy. (See also Controlled Thermonuclear Fusion) (09 Oct 1997) |