| 单词 | vector |
| 释义 | Word Frequency vector(ˈvɛktə) noun 1. Also called: polar vector mathematics a variable quantity, such as force, that has magnitude and direction and can be resolved into components that are odd functions of the coordinates. It is represented in print by a bold italic symbol: F or ̄F Compare pseudoscalar, pseudovector, scalar (sense 1), tensor (sense 2)2. mathematics an element of a vector space 3. Also called: carrier pathology an organism, esp an insect, that carries a disease-producing microorganism from one host to another, either within or on the surface of its body 4. Also called: cloning vector genetics an agent, such as a bacteriophage or a plasmid, by means of which a fragment of foreign DNA is inserted into a host cell to produce a gene clone in genetic engineering 5. the course or compass direction of an aircraft 6. any behavioural influence, force, or drive verb (transitive) 7. to direct or guide (a pilot, aircraft, etc) by directions transmitted by radio 8. to alter the direction of (the thrust of a jet engine) as a means of steering an aircraft Derived forms vectorial (vɛkˈtɔːrɪəl) adjective vectorially (vecˈtorially) adverb Word origin C18: from Latin: carrier, from vehere to convey |
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