(geology) inner core

Kyūjitai form of 内核 (“inner core”)

nuclear warhead

nuclear reaction

(Japanese phonology) an accent kernel/nucleus (the so-called "accented" mora of an utterance, which singly occurs for each utterance and which immediately precedes a drop in pitch from high to low)

Short for 熱原子核 (netsugenshikaku): thermonuclear

nuclear bomb

gender identity

(phonetics) monotone type: the most common pitch accent pattern in “standard” Japanese or 標(ひょう)準(じゅん)語(ご) (hyōjungo), as used in the mass media, where no syllable is accented: the first syllable has a low pitch and all subsequent syllables have a higher, gradually lowering pitch

a pitch accent pattern in Japanese where the first mora is low pitch, then the pitch is high until the accented mora, followed by an immediate downstep with the remaining syllables having low pitch