thermonuclear

/ˌθɜː.məʊˈnjuːk.liː.ə/ · adj

Meaning

Of, or relating to the fusion of atomic nuclei at high temperatures.
Of, or relating to the use of atomic weapons based on such fusion, especially as distinguished from those based on fission.
A thermonuclear weapon.

Etymology / origin

Etymology tree Proto-Indo-European *gʷʰer-der. Ancient Greek θερμός (thermós)der. English thermo- English nuclear English thermonuclear From thermo- + nuclear.

Related words

termonukleaarinen(Finnish)

Descendant words

termonukleaarinen(Finnish) (cog)

Sources

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