[noo-klee-er, nyoo- or, by metathesis, -kyuh-ler] /ˈnu kli ər, ˈnyu- or, by metathesis, -kyə lər/
pertaining to or involving atomic weapons:
operated or powered by atomic energy:
a nuclear submarine.
(of a nation or group of nations) having atomic weapons.
of, relating to, or forming a nucleus.
of, relating to, or like the :
switching to nuclear as a power source.
of, concerned with, or involving the nucleus of an atom: nuclear fission
(biology) of, relating to, or contained within the nucleus of a cell: a nuclear membrane
of, relating to, forming, or resembling any other kind of nucleus
of, concerned with, or operated by energy from fission or fusion of atomic nuclei: a nuclear weapon
involving, concerned with, or possessing nuclear weapons: nuclear war, a nuclear strike
1846, “of or like the nucleus of a cell,” from nucleus + -ar, probably by influence of French nucléaire. Use in atomic physics is from 1914; of weapons, from 1945. Hence nuclear physics (1933), nuclear energy (1941), nuclear war (1954). Nuclear winter coined by Richard Turco, but first attested in article by Carl Sagan in “Parade” magazine, Oct. 30, 1983. General sense of “central” is from 1912. Nuclear family, originally a sociologists’ term, is first attested 1949 in “Social Structure,” by American anthropologist G.P. Murdock (1897-1985). Alternative adjective nucleal is recorded from 1840.
nuclear nu·cle·ar (nōō’klē-ər, nyōō’-)
[pohst-nuhp-shuh l, -chuh l] /poʊstˈnʌp ʃəl, -tʃəl/ adjective 1. subsequent to marriage: postnuptial adjustments.
noun 1. any of several American oaks, especially Quercus stellata, the wood of which is used for posts.
[pohst-oh-bit, -ob-it] /poʊstˈoʊ bɪt, -ˈɒb ɪt/ adjective 1. effective after a particular person’s death. /pəʊstˈəʊbɪt; -ˈɒbɪt/ noun 1. Also called post-obit bond. a bond given by a borrower, payable after the death of a specified person, esp one given to a moneylender by an expectant heir promising to repay when his interest falls into possession […]
- Post-obit bond
noun 1. a bond paying a sum of money after the death of some specified person.