ḵ'aawtsx [*ḵ'aa/wtsx]
Derivative composed of: ḵ'aawts'  labret, -x  
common noun. gills
../mp3s/k_ul_hard/k'aawtsx-dl-hb-01.mp3 Dm ksiḵ'odzn na ḵ'aawts'xa hoon. You are going to cut out the fish's gills.

Source: Draft Dictionary entry. Draft Dictionary entry.