Definition of "fractional"

fractional

/ˈfɹæk.ʃən.əl/

adjective
comparative more fractional, superlative most fractional
1. Pertaining to a fraction.
2. Divided; fragmentary; incomplete.
3. Very small; minute.
  Quotations
  The two women exchanged a glance, then a fractional nod of agreement.
  1987, Bill Knox, A Flight from Paris, page 93
4. (chemistry) Relating to a process or product of fractional distillation.
noun
plural fractionals
1. (grammar) An expression of a fractional number.
2. 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.
3. (chemistry) Relating to a fraction in a material distillation or separation process.