vector

• 具有大小和方向的量，可用有向线段表示；也指传播病原体的生物媒介；在遗传学中指用于传递DNA的载体。

A noun with multiple meanings: a quantity having both magnitude and direction; a line segment representing such a quantity; an organism that transmits a pathogen; or a DNA delivery agent used in genetics.

1. Mathematical vectorB2formalscientific

   A variable quantity that has both magnitude and direction, often represented by an arrow.

   向量

   • Velocity is a vector because it includes both speed and direction.
   • The vector from point A to point B is drawn as an arrow.
   • In physics, forces are represented as vectors.

   反义词scalar

2. Geometric line segmentB2formalscientific

   A straight line segment with a specific length and orientation in space.

   几何向量

   • The vector has a magnitude of 5 units and points north.
   • We calculated the vector's components along the x and y axes.
   • The orientation of the vector determines its direction.

   同义词arrow

3. Disease carrierB2formalmedical

   An organism, such as an insect or animal, that transmits a disease from one host to another.

   病媒

   • Mosquitoes are vectors for malaria and dengue fever.
   • Ticks act as vectors for Lyme disease.
   • Controlling vector populations is crucial for public health.

   同义词carriertransmitter

4. Genetic delivery agentC1formalscientific

   A virus or other agent used in genetics to deliver foreign DNA into a cell.

   载体

   • The modified virus served as a vector for gene therapy.
   • Scientists used a viral vector to insert the new gene.
   • The vector successfully delivered the DNA to the target cells.

   同义词carriervehicle