asternal

As an adjective asternal is

(anatomy) not sternal; said of ribs that do not join the sternum.

As a noun taxonomy

is the science or the technique used to make a classification.

As an adjective asternal is

(anatomy) not sternal; said of ribs that do not join the sternum.

As a noun sternum

is the breastbone.

As an adjective asternal is

(anatomy) not sternal; said of ribs that do not join the sternum.

As a noun rib

is any of a series of long curved bones occurring in 12 pairs in humans and other animals and extending from the spine to or toward the sternum.

As a verb rib

is to shape, support, or provide something with a rib or ribs.

As an adjective asternal is

not sternal; said of ribs that do not join the sternum.