noun
teething; dentition; cutting teeth
Medical and biological term for the process of teeth erupting through the gums. More formal than 歯が生える.
生歯の時期には個人差があります。
There are individual differences in the timing of teething.
乳児の生歯は通常生後6か月頃から始まります。
Infant teething usually begins around six months after birth.