divide

Divide is a term with multiple distinct meanings in different fields, including mathematics, biology, and geography, and it is also used as a place name in various countries.

In mathematics, division is the operation of determining how many times one number is contained in another. For numbers a and b with b not equal to zero, the quotient a ÷ b satisfies a = b × (a ÷ b). In fractional form, a divided by b is a/b. Division by zero is undefined. The result can be a finite quotient or, for certain numbers, an infinite decimal. Division is the inverse operation of multiplication and is fundamental to arithmetic, algebra, and many applied disciplines.

In biology, cell division refers to the process by which a cell divides into two or more daughter cells. In eukaryotes, mitosis produces genetically identical somatic cells for growth and tissue repair, while meiosis yields gametes with half the chromosome number for sexual reproduction. Prokaryotes primarily divide by binary fission. Cell division is essential for development, reproduction, and maintaining biological function.

In geography, a divide (or watershed) is a high ground that separates neighboring drainage basins, directing water flow toward different rivers or seas. The term is also used as a place name for towns, districts, or regions in various countries. As a toponym, Divide typically reflects historical or geographical features associated with a watershed boundary.