vector  
noun [ C ]  specialized uk/ˈvek.tər/ us/ˈvek.tɚ/
  (CALCULATION)       
  physics 矢量;向量
something physical such as a force that has size and direction
 Compare: scalar
 vector quantity 矢量数量;向量数量
something that can be represented by a vector
   (ANIMAL)      
 biology (在动物或植物之间传播疾病的)昆虫媒介,传病媒介
an insect or animal that carries a disease from one animal or plant to another
  Mosquitoes are the vectors of malaria. 蚊子是疟疾的传播媒介。