uphold definition, uphold meaning | English dictionary. Search also in: Web News Encyclopedia Images. uphold. vb , -holds, -holding, -held tr. 1 to maintain, affirm, or defend against opposition or challenge. 2 to give moral support or inspiration to.
Definition of Derivative. A compound that can be imagined to arise from a partent compound by replacement of one atom with another atom or group of atoms. Used extensively in orgainic chemistry to assist in identifying compounds.
A derivative is a rate of change, and everything in the world changes as time passes, so derivatives can be very useful. In 1687 Newton published his three laws of motion, now known as Newtonian mechanics; these laws became the basis of physics.