From hepta- + -valent
"heptavalent." YourDictionary, n.d. Web. 11 November 2018. <https://www.yourdictionary.com/heptavalent>.
heptavalent. (n.d.). Retrieved November 11th, 2018, from https://www.yourdictionary.com/heptavalent
Yes, I'd like to receive Word of the Day emails from YourDictionary.com
By continuing, you agree to our
Please set a username for yourself.
People will see it as Author Name with your public flash cards.