代

Computing

algebraic operator

goodwill; intangible assets (part of the acquisition price of a business paid for the name and reputation of the company rather than tangible assets)

working in shifts

generation ship (science fiction); interstellar ark

Computing

assignment operator; substitution operator

Sumo

era during mid-1970s dominated by grand champions Wajima and Kitanoumi

Precambrian era

contemporary dance; modern dance

absolute age

adolescents and young adults (AYAs) with cancer

atomic age

protohistory (the period between prehistory and history)

Wei, Jin, and Southern and Northern Dynasties period (China, 220-589 CE)

CFC substitute; alternative CFCs; alternative chlorofluorocarbon

voting by proxy

silverthorn (species of oleaster, Elaeagnus pungens); thorny elaeagnus; thorny olive

generation of young people (esp. of the 1970s) apathetic about social issues

intergenerational (social) exchange

once in an emperor's reign; event that takes place only once in a sovereign's reign

modernism

Sumo

special coaching stock awarded to retired grand champion

hereditary succession

Mathematics

algebraic number

switchboard number