永久齿 yǒngjiǔchǐ permanent teeth Definitions Defs Origin Strokes Stroke Words Sentences Sents 永久 yǒngjiǔ adjectiveadverb permanent permanent; perpetual; everlasting; lasting forever齿 齒 chǐ noun tooth (bound form) tooth; teeth; refers specifically to the organs in the mouth used for chewing, as in 牙齿 yáchǐ