卯眼 Traditional form: 卯眼 Pinyin (reading): mǎoyǎn Definitions: mortise slit Characters: 卯 - 4th terrestrial branch; period from 5-7 a.m. 眼 - eyelet, hole, opening Traditional characters: 卯 - 4th terrestrial branch; period from 5-7 a.m. 眼 - eyelet, hole, opening