What is the meaning of Fractional?

Pertaining to a fraction.

Divided; fragmentary; incomplete.

Very small; minute.

Relating to a process or product of fractional distillation.

An expression of a fractional number.

Partial ownership of a property, such as real estate or a chartered airplane, such that each partial owner has use of the property for only a portion of the time.

Relating to a fraction in a material distillation or separation process.

Source: wiktionary.org