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
United States songwriter whose songs embody the sentiment of the South before the American Civil War (1826-1864)
providing or receiving nurture or parental care though not related by blood or legal ties; "foster parent"; "foster child"; "foster home"; "surrogate father"
help develop, help grow; "nurture his talents"
bring up under fosterage; of children
promote the growth of; "Foster our children's well-being and education"
the form in which a text (especially a printed book) is published
an issue of a newspaper; "he read it in yesterday's edition of the Times"
all of the identical copies of something offered to the public at the same time; "the first edition appeared in 1920"; "it was too late for the morning edition"; "they issued a limited edition of Bach recordings"
reproduction of some unicellular organisms (such as yeasts) by growth and specialization followed by the separation by constriction of a part of the parent
a thoroughfare (usually including sidewalks) that is lined with buildings; "they walked the streets of the small town"; "he lives on Nassau Street"
the part of a thoroughfare between the sidewalks; the part of the thoroughfare on which vehicles travel; "be careful crossing the street"
people living or working on the same street; "the whole street protested the absence of street lights"
a situation offering opportunities; "he worked both sides of the street"; "cooperation is a two-way street"
the streets of a city viewed as a depressed environment in which there is poverty and crime and prostitution and dereliction; "she tried to keep her children off the street"