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.
The cross section is the section of the figure after cutting it. (1) Any cross section of a sphere is a circle. (2) A horizontal cross section of a cone is a circle, while its vertical cross section is a triangle. (3) The horizontal cross section of a cylinder is circle and the vertical cross section is a rectangle.