fractional

Etymology

From fraction + -al.

adj

1. Pertaining to a fraction.
2. Divided; fragmentary; incomplete.
3. Very small; minute.
   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

1. (grammar) An expression of a fractional number.
   In English, most ordinals double as fractionals — "third", "fourth", and so on — with the exception of "second", whose corresponding fractional is "half".
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.
   A fractional is much more expensive than a traditional timeshare, but to many people, it's worth it.
3. (chemistry) Relating to a fraction in a material distillation or separation process.