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.
Definition of derivative. 1  1 linguistics : a word formed from another word or base : a word formed by derivation âpointy,â âpointed,â and other derivatives of âpointâ. 2  2 : something derived â¦ the sonata form (itself a derivative of opera) â¦ â Kingsley Martin the name âMiaâ is a derivative of âMariaâ. 3 mathematics : the limit of the ratio of the change in a function to the corresponding change in its independent variable as the latter change approaches zero.