出牙,出牙期
Teeth \Teeth\, v. i. [imp. & p. p. {Teethed}; p. pr. & vb. n. {Teething}.] To breed, or grow, teeth. Teething \Teeth"ing\, n. The process of the first growth of teeth, or the phenomena attending their issue through the gums; dentition.
teething n : the eruption through the gums of baby teeth [syn: {dentition}, {odontiasis}]