15-Letter Words Containing: T,O,F,F

• A device that uses diffraction (especially X-ray diffraction) to investigate the structure of matter.

• a disposition to be distant and unsympathetic in manner

• the bearing of fruit

• organs of fruiting (especially the reproductive parts of ferns and mosses)

• the quality of requiring deliberate effort

• a discrimination between things as different and distinct on the basis of their characteristics or attributes

• the mathematical process of obtaining the derivative of a function

• (biology) the structural adaptation of some body part for a particular function