fractional

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.”

4. Relating to a process or product of fractional distillation.

noun

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