heptavalent

[ hep-tuh-vey-luhnt ]

adjective

, Chemistry.

1. septivalent.

heptavalent

/ hɛpˈtævələnt; ˌhɛptəˈveɪlənt /

adjective

1. chem having a valency of seven Alsoseptivalent

Word History and Origins

Origin of heptavalent¹

hepta- + -valent