NUCLEAR

nuclear

(adjective) constituting or like a nucleus; “annexation of the suburban fringe by the nuclear metropolis”; “the nuclear core of the congregation”

nuclear, atomic

(adjective) (weapons) deriving destructive energy from the release of atomic energy; “nuclear war”; “nuclear weapons”; “atomic bombs”

nuclear

(adjective) of or relating to or constituting the nucleus of an atom; “nuclear physics”; “nuclear fission”; “nuclear forces”

nuclear

(adjective) of or relating to or constituting the nucleus of a cell; “nuclear membrane”; “nuclear division”

Source: WordNet® 3.1


Etymology

Adjective

nuclear (not comparable)

Pertaining to the nucleus of an atom. [from 20th c.]

Involving energy released by nuclear reactions (fission, fusion, radioactive decay). [from 20th c.]

Relating to a weapon that derives its force from rapid release of energy through nuclear reactions. [from 20th c.]

(by extension, metaphoric, of a solution or response) Involving an extreme course of action.

(biology) Pertaining to the nucleus of a cell. [from 19th c.]

(archaic) Pertaining to a centre around which something is developed or organised; central, pivotal. [from 19th c.]

Usage notes

• The pronunciation /nukjÉ™lÉš/, although included by some sources such as Merriam-Webster (Online 10th Edition), is nonstandard and listed as such. See also nucular, and nucular in Wikipedia.

Noun

nuclear (uncountable)

nuclear power

Anagrams

• crenula, lucarne, unclear

Source: Wiktionary


Nu"cle*al, Nu"cle*ar, a.

Definition: Of or pertaining to a nucleus; as, the nuclear spindle (see Illust. of Karyokinesis) or the nuclear fibrils of a cell; the nuclear part of a comet, etc.

Source: Webster’s Unabridged Dictionary 1913 Edition



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Word of the Day

19 June 2025

ROOTS

(noun) the condition of belonging to a particular place or group by virtue of social or ethnic or cultural lineage; “his roots in Texas go back a long way”; “he went back to Sweden to search for his roots”; “his music has African roots”


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Coffee Trivia

According to Guinness World Records, on 25 September 2016, the Birla Institute of Management Technology (India) in Uttar Pradesh, India, constructed the largest coffee cups pyramid consisting of 23,821 cups. They used paper takeaway coffee cups to build the pyramid.

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