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
the position of greatest importance or advancement; the leading position in any movement or field; "the Cotswolds were once at the forefront of woollen manufacturing in England"; "the idea of motion was always to the forefront of his mind and central to his philosophy"
the outward appearance of a person; "he put up a bold front"
the side that is forward or prominent
the part of something that is nearest to the normal viewer; "he walked to the front of the stage"
(meteorology) the atmospheric phenomenon created at the boundary between two different air masses
a sphere of activity involving effort; "the Japanese were active last week on the diplomatic front"; "they advertise on many different fronts"
confront bodily; "breast the storm"
be oriented in a certain direction, often with respect to another reference point; be opposite to; "The house looks north"; "My backyard look onto the pond"; "The building faces the park"