Read Edit View history Discussion 𡿺 nǎo brain Origin Definitions Defs Strokes Stroke Words Sentences Sents Variant of 匘. Depicts a figure holding an axe (戌) behind their back. The current meaning is a phonetic loan. Components ◎ ◎ Iconic component characterless component Depicts the figure's eye. 戌 戌 Iconic component xū, qu 11th terrestrial branch Depicts an axe. Here turned upside-down. Modern form looks like 囟. Change in form Due to historical stylistic changes, this component is less similar to 戌 than it was in ancient scripts. Component uses Sound (2 of 3 verified) 瑙腦惱 Meaning (1) 腦 Sources Character origin 布之道回答《《说文解字》“匘，頭髓也。从囟，从匕，相匕著也。”相匕著什么意思？》Readings & variants Unicode