| 单词 | index |
| 释义 | Word Frequency index(ˈɪndɛks) nounWord forms: plural -dexes or -dices (-dɪˌsiːz) 1. an alphabetical list of persons, places, subjects, etc, mentioned in the text of a printed work, usually at the back, and indicating where in the work they are referred to 2. thumb index 3. library science a systematic list of book titles or authors' names, giving cross-references and the location of each book; catalogue 4. an indication, sign, or token 5. a pointer, needle, or other indicator, as on an instrument 6. mathematics a. another name for exponent (sense 4) b. a number or variable placed as a superscript to the left of a radical sign indicating by its value the root to be extracted, as in3√8 = 2 c. a subscript or superscript to the right of a variable to express a set of variables, as in usingxi for x1, x2, x3, etc 7. a numerical scale by means of which variables, such as levels of the cost of living, can be compared with each other or with some base number 8. a number or ratio indicating a specific characteristic, property, etc refractive index 9. Also called: fist a printer's mark (☛) used to indicate notes, paragraphs, etc 10. obsolete a table of contents or preface verb (transitive) 11. to put an index in (a book) 12. to enter (a word, item, etc) in an index 13. to point out; indicate 14. to index-link 15. to move (a machine or a workpiece held in a machine tool) so that one particular operation will be repeated at certain defined intervals Derived forms indexer (ˈindexer) noun indexless (ˈindexless) adjective Word origin C16: from Latin: pointer, hence forefinger, title, index, from indicāre to disclose, show; see indicate |
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英语词典包含233703条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。