a variable quantity that can be resolved into components
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"
a straight line segment whose length is magnitude and whose orientation in space is direction
continue to live; endure or last; "We went without water and food for 3 days"; "These superstitions survive in the backwaters of America"; "The race car driver lived through several very serious accidents"; "how long can a person last without food and water?"
continue in existence after (an adversity, etc.); "He survived the cancer against all odds"
an imaginary great circle on the surface of the earth passing through the north and south poles at right angles to the equator; "all points on the same meridian have the same longitude"