Between the ribs; pertaining to, or produced by, the parts between the ribs; as, intercostal respiration, in which the chest is alternately enlarged and contracted by the intercostal muscles.

Located or occurring between the ribs.

inter, between + costa rib). Situated between the ribs.

longitudinal girder between the floors or frames of a ship; it is non-continuous

Made in separate parts; between floors, frames or beams, etc; the opposite of continuous