This article examines the clinical, pathologic, and radiologic features of pulmonary immaturity, the impact of evolving therapeutic strategies, and the changing face of chronic lung disease of prematurity.
intr.v. cross-mulÂ·tiÂ·plied, cross-mulÂ·tiÂ·plyÂ·ing, cross-mulÂ·tiÂ·plies. To multiply the numerator of one of a pair of fractions by the denominator of the other.
Noun. 1. cross section-a section created by a plane cutting a solid perpendicular to its longest axis. profile-a vertical section of the Earth's crust showing the different horizons or layers. plane section, section - (geometry) the area created by a plane cutting through a solid.