Murchison Surname Meaning. Descriptive Writing introductory reference. An Englishing of Gaelic MacMhurchaidh, 'son of Murchadh,' Englished Murdoch. Fowill Morthoison was burgess of Inverness, 1452 (Invernessiana, p. 122).
enrichment. 1  an act of enriching. 2  the state of being enriched. 3  something that enriches: the enrichments of education and travel.
Enriched uranium is a type of uranium in which the percent composition of uranium-235 has been increased through the process of isotope separation.ost nuclear reactors require enriched uranium which is uranium with higher concentrations of U-235 ranging between 3.5% and 4.5%. There are two commercial enrichment processes: gaseous diffusion and gas centrifugation. Both enrichment processes involve the use of uranium hexafluoride and produce enriched uranium oxide.