About
齿 (chǐ) is the simplified version of 齒. It originated as a pictograph of an open mouth showing a row of teeth. Later, the sound component 止 (zhǐ) was added above, creating the traditional form 齒, which clearly depicts upper and lower teeth beneath it. In the simplified character, the intricate bottom is dramatically reduced to a simple shape resembling 人 (rén) enclosed in a border, sacrificing pictorial detail for writing efficiency. The primary meaning is teeth in humans and animals, and by extension, it refers to any small, sharp, repeating projections, such as gear teeth or the teeth of a saw.
Etymology Hide
Example Sentences Hide
我的牙齿很白。
医生检查了我的牙齿。
这个机器有齿轮。
小孩子要保护牙齿。
锯子上有锯齿。
定期看牙医对牙齿好。
齿轮和齿条一起工作。
这种材料的齿形设计很独特。
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