Japanese edit

For pronunciation and definitions of はんかく – see the following entries.
反核
[noun] antinuclear
半角
[noun] (attributive, computing, typography, of an East Asian character or glyph) the state of being halfwidth which, in early computer encoding, occupies 1 byte, and in modern typography, visually either equals 1 en or proportional
(This term, はんかく, is the hiragana spelling of the above terms.)