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
a general course along which something has a tendency to develop; "I couldn't follow the direction of his thoughts"; "his ideals determined the direction of his career"; "they proposed a new direction for the firm"
a message describing how something is to be done; "he gave directions faster than she could follow them"
a line leading to a place or point; "he looked the other direction"; "didn't know the way home"
the spatial relation between something and the course along which it points or moves; "he checked the direction and velocity of the wind"
in a curt, abrupt and discourteous manner; "he told me curtly to get on with it"; "he talked short with everyone"; "he said shortly that he didn't like it"
rough projection left on a workpiece after drilling or cutting
rotary file for smoothing rough edges left on a workpiece
United States politician who served as vice president under Jefferson; he mortally wounded his political rival Alexander Hamilton in a duel and fled south (1756-1836)