quad·ri·va·lent 
(kwŏd′rə-vālənt)
(kwŏd′rə-vālənt)adj.
Tetravalent.
quad′ri·valence, quad′ri·valen·cy n.
- commentator
- commerce
- commercial
- commercial bank
- commercialism
- commercialist
- commercialistic
- commercialization
- commercialize
- commercially
- commercial paper
- commercial traveler
- commie
- commination
- comminatory
- Commines
- Commines
- commingle
- comminute
- comminution
- commiserate
- commiseration
- commiserative
- commiseratively
- commiserator