A part of a whole; a segment or portion that is less than one.

एक पूर्ति का एक भाग

English Usage: The doctor prescribed a fractional dose of the medication to ensure it would be effective without causing side effects.

Hindi Usage: डॉक्टर ने दवा की एक fractional dose लिखी ताकि यह प्रभावी रहे बिना साइड इफेक्ट्स का कारण बने।