JMdict: 1202660

開口部 【かいこうぶ】

  1. [n] aperture
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Kanji in this word:

Kanji Meanings On Readings Kun Readings
開 Open, Unfold, Unseal かい ひら.く, ひら.き, -びら.き, ひら.ける, あ.く, あ.ける
口 Mouth こう, く くち
部 Section, Bureau, Dept, Class, Copy, Part, Portion, Counter For Copies Of A Newspaper Or Magazine ぶ -べ