For the purpose of this class, is a nuclear reaction in which light nuclei combine to form a nucleus of a heavier mass number. See also Thermonuclear Fusion Reaction.
The first of seven steps in the HIV life cycle. HIV binds to the CD4 receptor and a coreceptor (either CCR5 or CXCR4) on the host cell, causing the viral envelope to fuse with the host cell membrane. This fusion allows HIV to release HIV RNA and HIV enzymes, such as reverse transcriptase and integrase, into the host cell.
A process of joining plastic pipe segments by melting the plastic polymers at the two ends with heat to an extent where they will molecularly bond when pressed together. Depending on the type and size of pipe and the fusion machine used, precise temperatures, pressures, and time of cooling prior to releasing the joint from the fusion machine are all critical to producing an acceptable joint.
A reaction in which at least one heavier, more stable nucleus is produced from two lighter, less stable nuclei. Reactions of this type are responsible for the release of energy in stars or in thermonuclear weapons.
Fusion has been defined 12 different ways in documents like USPC Consolidated Glossary, Glossaries of BLM Surveying and Mapping Terms, Program Manual: Radiological Emergency Preparedness, and 7 more.