| 单词 | derivative |
| 释义 | derivative —derivatively, adv. —derivativeness, n. /di riv"euh tiv/, adj. 1. derived. 2. not original; secondary. n. 3. something derived. 4. Also called derived form. Gram. a form that has undergone derivation from another, as atomic from atom. 5. Chem. a substance or compound obtained from, or regarded as derived from, another substance or compound. 6. Also called differential quotient; esp. Brit., differential coefficient. Math. the limit of the ratio of the increment of a function to the increment of a variable in it, as the latter tends to 0; the instantaneous change of one quantity with respect to another, as velocity, which is the instantaneous change of distance with respect to time. Cf. first derivative, second derivative. 7. a financial contract whose value derives from the value of underlying stocks, bonds, currencies, commodities, etc. [1400-50; late ME derivatif < LL derivativus, equiv. to L derivat(us) (see DERIVATION) + -ivus -IVE] |
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