About
The character 芤 incorporates the grass radical 艹 above the component 孔, which provides phonetic indication and contributes to its association with hollowness due to the meaning of "hole" inherent in 孔. Originally, the term denoted a type of plant characterized by a hollow stem, such as an onion or leek. This concrete attribute later enabled its semantic transfer into traditional Chinese medicine, where it was borrowed to name a pulse quality that feels empty or hollow upon palpation. Thus, its primary meaning evolved from a specific botanical reference to a technical descriptor within medical practice.