pen·ta·va·lent /ˌpɛntəˈvelənt/ 五價的
pen·ta·va·lent /ˌpɛntəˈvelənt/ 形容詞 五價的
Pen·tav·a·lent a. Chem. Having a valence of five; -- said of certain atoms and radicals. ◄ ►
pentavalent adj : having a valence of five