| 释义 |
de·riv·a·tive
I. \də̇ˈrivəd.]iv, dēˈ-, -vət]\ adjective
Etymology: Late Latin derivativus, from Latin derivatus + -ivus -ive
1. linguistics : formed by derivation
2. : made up of or marked by elements or qualities derived from something else (as from an ultimate source) : arising from, obtained by, used in, or consisting of derivation : lacking originality
< derivative ecclesiastical structures with which the landscape … was dotted in a time when people did not know how to build — G.N.Shuster >
< derivative presentation of already available data rather than an original contribution — English Language Teaching >
< artists who spend most of their time with other artists … their work thins out, becomes derivative, lacks the individual contour — Sidney Alexander >
3. : secondary, derivational
< not only in their direct success but in the derivative benefits that would flow from them — Elmer Davis >
II. noun
(-s)
1. : a word formed by derivation
2. : something that derives from, grows out of, or results from an earlier or fundamental state or condition
< the sonata form (itself a derivative of opera) — Kingsley Martin >
< nostalgia is a fine derivative from any book — Lewis Nichols >
3. : derivative of a function
4.
a. : a chemical substance that is so related structurally to another substance as to be theoretically derivable from it even when not so obtainable in practice
< the methoxy derivative of naphthalene >
b. : a substance that can be made from another substance in one or more steps
< nitration of benzene to the meta-dinitro derivative >
5. : one that holds derivative citizenship
III. noun
: a contract or security that derives its value from that of an underlying asset (as another security) or from the value of a rate (as of interest or currency exchange) or index of asset value (as a stock index) |