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.
Multiplication is also defined for other types of numbers, such as complex numbers, and more abstract constructs, like matrices. For these more abstract constructs, the order that the operands are multiplied sometimes does matter.ne of the main properties of multiplication is the commutative property, adding 3 copies of 4 gives the same result as adding 4 copies of 3: The multiplication of integers (including negative numbers), rational numbers (fractions) and real numbers is defined by a systematic generalization of this basic definition.