Related formspre·chord·al, adjective
Examples from the Web for chordal
In Elasmobranchii the chordal sheath is weak and the skeletogenous layer strong.
The notochord remains permanently unconstricted and is enclosed in a chordal sheath, external to which is the skeletogenous layer.
Of the divine spheral music, the one is the chordal harmony, the other the consecutive harmony or melody.Evolution|Joseph Le Conte
In Amphioxus the notochord is immediately surrounded by a structureless cuticular layer, the chordal sheath.