vector
英 ['vekt?]
美['v?kt?]
- n. 矢量；帶菌者；航線
- vt. 用無線電導航
英英釋意
- 1. a variable quantity that can be resolved into components
- 2. a straight line segment whose length is magnitude and whose orientation in space is direction
- 3. 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"