core; heart (of the matter); point; crux; kernel
kernel; core; nucleus; center; centre
nuclear attack; nuclear strike
crucial; critical; vital; core
nuclear fission; karyokinesis (division of a cell nucleus during mitosis or meiosis)
core (of planets, stars, galaxies, etc.); nucleus (of comets, galaxies, etc.)
nuclear material; nuclear matter
non-nuclear; anti-nuclear
nuclear magnetic resonance; NMR
total abolition of nuclear weapons
possession of nuclear weapons
infectious mononucleosis; mono; glandular fever
ice nucleus; ice nucleating particle; INP
abandoning nuclear weapons, etc.; nuclear disposal
nucleus accumbens (part of the forebrain)
antinuclear antibody; ANA; antinuclear factor; ANF
nuclear allergy; antipathy shown by the Japanese to nuclear weapons
basal ganglia; basal nuclei
(major) nuclear power (i.e. one of the five NPT-designated nuclear weapon states)
suprachiasmatic nucleus; SCN
nuclear development program; nuclear program
nuclear watchdog (i.e. the IAEA)
progressive supranuclear palsy; PSP
fissility; fissile; fissionable
Joint Comprehensive Plan of Action; Iran nuclear deal; Iran deal
eukaryotic microorganism; eucaryotic microorganism
progressive supranuclear palsy; PSP
Declaration on Non-Proliferation and Disarmament (2013)
nuclear magnetic resonance imaging; NMRI
nuclear defenses; nuclear defences
nuclear reprocessing plant
nuclear phase (of an organism, cell, etc.)
active galactic nucleus; AGN
nuclear issue (esp. weapon proliferation); nuclear problem
infectious mononucleosis; mono; glandular fever
superheavy nucleus; ultraheavy nucleus
suspicion of having (or to be making) nuclear weapons
(spent) nuclear fuel storage pool
nuclear decay; nuclear disintegration; karyorrhexis (destructive fragmentation of a dying cell's nucleus)
nuclear fuel rod; nuclear rod
enucleation (removal of a cell nucleus); pitting (nut, fruit, etc.)
radioactive waste; nuclear waste
radioactive waste; nuclear waste
radioactive waste; nuclear waste
hijacking of nuclear material
accent nucleus; accent kernel