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| a chattering or flighty, light-headed person. |
| a scrap or morsel of food left at a meal. |
| vector (ˈvɛktə) | |
| —n | |
| 1. | maths pseudoscalar pseudovector scalar Compare tensor Also called: polar vector 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 |
| 2. | maths an element of a vector space |
| 3. | pathol Also called: carrier 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. | genetics Also called: cloning vector 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 |
| —vb | |
| 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 |
| [C18: from Latin: carrier, from vehere to convey] | |
| vectorial | |
| —adj | |
| vec'torially | |
| —adv | |
vectorial vec·to·ri·al (věk-tôr'ē-əl)
adj.
Of, relating to, or characterized by a vector.