spec - stan
- spec
- special
- special enrichment
- special fissionable material
- special isotope separation
- special maintenance
- special nuclear material
- special power excursion test reactor
- special production reactor
- special test reactor
- special training course
- special water purification system
- special work permit
- special work permit area
- special-purpose
- specialist
- speciality
- speciation
- species
- species precursor
- specific
- specific activity
- specific burnup
- specific capacity
- specific charge
- specific conductance
- specific conductivity
- specific consumption
- specific current
- specific danger
- specific dose
- specific electric energy production
- specific energy
- specific energy consumption
- specific energy cost
- specific entropy
- specific fuel consumption
- specific fuel cost
- specific gravity bottle
- specific heat
