1. relating to or expressed as a fraction
Usage: mathematics
2. very small in amount; forming only a tiny part of something

Examples

• The recipe calls for a fractional cup of sugar.
• She owns only a fractional share of the company.
• The difference in price was fractional.
• Fractional numbers include halves, thirds, and quarters.
• The improvement was fractional but still noticeable.
• He made a fractional adjustment to the machine settings.