Free Carrier. In international commerce, an agreement between a seller and a buyer indicating that the seller has fulfilled his/her obligation to deliver a good when he/she has transferred it to the port, airport, or other place from which it will be transported.
Definition of UNIT FRACTION. : a fraction whose numerator is unity and whose denominator is an integer.
Fractional distillation is one of the unit operations of chemical engineering. Fractionating columns are widely used in the chemical process industries where large quantities of liquids have to be distilled.