1. costal - Noun
2. costal - Adjective
Pertaining to the ribs or the sides of the body; as, costal nerves.
Relating to a costa, or rib.
Source: Webster's dictionaryDue to this direct attachment, vertebra T10 has a complete costal facet on its body. Source: Internet
In humans the second rib is defined as a true rib since it connects with the sternum through the intervention of the costal cartilage anteriorly (at the front). Source: Internet
It is believed that melting Arctic ice will cause sea levels to rise and flood costal areas. Source: Internet
Members of the family Salamandridae are mostly known as newts and lack the costal grooves along the sides of their bodies typical of other groups. Source: Internet
The eighth-to-tenth pairs of ribs connect to the sternum indirectly via the costal cartilages of the ribs above them. Source: Internet
The eleventh has a slight angle and a shallow costal groove, whereas the twelfth does not. Source: Internet