Subcostal means below the ribs or situated beneath a rib. Synonyms for subcostal include infracostal, subpleural, hypochondral, and intercostal. Infracostal refers to anything below the ribs or situated beneath a rib, just like subcostal. Subpleural refers to the area below the pleura, which is the thin membrane covering the lungs. Hypochondral refers to the region below the cartilage that connects the ribs to the sternum. Intercostal refers to the muscles and nerves between the ribs. However, unlike subcostal, intercostal specifically refers to the space between two adjacent ribs. These synonyms for subcostal can be useful for medical professionals, researchers, and students.