flexus

Noun

1. A low, curvilinear ridge with a scalloped pattern.
2. In infolding of enamel that separates lophs on an upper tooth.
   • A flexid or flexus is said to abut when the enamel of the flexid or flexus touches the enamel of the opposite side of the tooth. The distal end or termination of the flexid or flexus is described as flattened, rounded...