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凹槽

Mandarin · pinyin āo cáo

recess
notch
groove
fillister

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Characters in this entry

凹: āo · concave, hollow, depressed; a pass, valley
槽: cáo · trough; manger; vat, tank; groove; a distillery

Written characters and their own readings; the entry’s pronunciation is shown above.

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Mandarin tones

1–2 · ao1 cao2

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Follow a written form into the eight pinned witnesses: Analects, Mencius, Laozi, Zhuangzi, Xunzi, Han Feizi, Sunzi and the Mao Shijing. A match is a place to investigate; it does not prove that a modern dictionary sense fits the passage.

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Wiktionary English definitions · Chinese section

Independent source senses for this spelling, with usage labels retained. Not matched to the pronunciation above.

noun

canal; recess; notch; groove; fillister; trough; indentation; impression

Source page · dump 2026-09-02 · Contributors & history

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