(n) any agent (person or animal or microorganism) that carries and transmits a disease, Syn.transmitter, Example: 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
n. [ L., a bearer, carrier. fr. vehere, vectum, to carry. ] 1. Same as Radius vector. [ 1913 Webster ]
2. (Math.) A directed quantity, as a straight line, a force, or a velocity. Vectors are said to be equal when their directions are the same and their magnitudes equal. Cf. Scalar. [ 1913 Webster ]
☞ In a triangle, either side is the vector sum of the other two sides taken in proper order; the process finding the vector sum of two or more vectors is vector addition (see under Addition). [ 1913 Webster ]
แสดงได้ทั้งความหมายของคำเดี่ยว และคำผสม ได้อย่างถูกต้อง
เช่น Secretary of State=รัฐมนตรีต่างประเทศของสหรัฐฯ (ในภาพตัวอย่าง),
High school=โรงเรียนมัธยมปลาย