kanji radicals (left, right, crown, and lower)
A yojijukugo that collectively refers to the four main positional categories of kanji components: 偏 (left), 旁 (right), 冠 (top/crown), and 脚 (bottom). Used in discussions of kanji structure.
Learning the left, right, crown, and lower radicals of kanji deepens your understanding of bushu.
部首 is the general term for a kanji radical used for dictionary lookup, while 偏旁冠脚 is a specific set of four positional categories of radicals.
A yojijukugo composed of 偏 (left radical), 旁 (right radical), 冠 (crown/top radical), and 脚 (lower radical). The exact historical derivation is uncertain, but the term is conventionally used in kanji studies.