Vector

(noun.) (genetics) a virus or other agent that is used to deliver DNA to a cell.

(noun.) a variable quantity that can be resolved into components.

(noun.) any agent (person or animal or microorganism) that carries and transmits a disease; 'mosquitos are vectors of malaria and yellow fever'; 'fleas are vectors of the plague'; 'aphids are transmitters of plant diseases'; 'when medical scientists talk about vectors they are usually talking about insects'.

(noun.) a straight line segment whose length is magnitude and whose orientation in space is direction.

编辑:塔比瑟

• He wrote to Leverrier in reference to the errors of the radius vector and received a satisfactory and sufficiently compliant reply. 李贝. 西洋科学史.

录入:鲁道夫