A map is a diagram of a place, showing roads and highways and natural features like lakes, rivers, and mountains. When your dad stops the car, sighs, and pulls out his map, you are probably lost.

As more and more people rely on electronic devices to get directions, the art of reading a map is becoming lost. A map can illustrate roads, stars in the galaxy, or even the genes in a human chromosome. When you map something, you sketch it or plan the route or steps you will take, like mapping out your future. A Latin root of map is mappa, or "napkin," as in something you'd sketch a map on.

Definitions of map

n a diagrammatic representation of the earth's surface (or part of it)

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a map designed to assist navigation by air or sea
choropleth map
a map that uses graded differences in shading or color or the placing of symbols inside defined areas on the map in order to indicate the average values of some property or quantity in those areas
contour map, relief map
a map having contour lines through points of equal elevation
a map showing planned or actual features of an area (streets and building lots etc.)
road map
a map showing roads (for automobile travel)
sketch map
a map drawn from observation (rather than from exact measurements) and representing the main features of an area
weather chart, weather map
(meteorology) a map showing the principal meteorological elements at a given time and over an extended region
naval chart, navigational chart, pilot chart
a chart for a navigator showing the prevailing meteorological and hydrographic and navigational conditions
wind rose
weather map showing the frequency and strength of winds from different directions
Type of:
a creation that is a visual or tangible rendering of someone or something

n (mathematics) a mathematical relation such that each element of a given set (the domain of the function) is associated with an element of another set (the range of the function)

function, mapping, mathematical function, single-valued function
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multinomial, polynomial
a mathematical function that is the sum of a number of terms
a function expressed as a sum or product of terms
inverse function
a function obtained by expressing the dependent variable of one function as the independent variable of another; f and g are inverse functions if f(x)=y and g(y)=x
Kronecker delta
a function of two variables i and j that equals 1 when i=j and equals 0 otherwise
metric, metric function
a function of a topological space that gives, for any two points in the space, a value equal to the distance between them
(mathematics) a function that changes the position or direction of the axes of a coordinate system
a one-to-one mapping of one metric space into another metric space that preserves the distances between each pair of points
(mathematics) a symbol or function representing a mathematical operation
circular function, trigonometric function
function of an angle expressed as a ratio of the length of the sides of right-angled triangle containing the angle
threshold function
a function that takes the value 1 if a specified function of the arguments exceeds a given threshold and 0 otherwise
exponential, exponential function
a function in which an independent variable appears as an exponent
biquadratic, biquadratic polynomial, quartic polynomial
a polynomial of the fourth degree
homogeneous polynomial
a polynomial consisting of terms all of the same degree
monic polynomial
a polynomial in one variable
quadratic, quadratic polynomial
a polynomial of the second degree
(mathematics) the sum of a finite or infinite sequence of expressions
(mathematics) a transformation in which the direction of one axis is reversed
(mathematics) a transformation in which the coordinate axes are rotated by a fixed angle about the origin
(mathematics) a transformation in which the origin of the coordinate system is moved to another position but the direction of each axis remains the same
affine transformation
(mathematics) a transformation that is a combination of single transformations such as translation or rotation or reflection on an axis
linear operator
an operator that obeys the distributive law: A(f+g) = Af + Ag (where f and g are functions)
identity, identity element, identity operator
an operator that leaves unchanged the element on which it operates
sin, sine
ratio of the length of the side opposite the given angle to the length of the hypotenuse of a right-angled triangle
arc sine, arcsin, arcsine, inverse sine
the inverse function of the sine; the angle that has a sine equal to a given number
cos, cosine
ratio of the adjacent side to the hypotenuse of a right-angled triangle
arc cosine, arccos, arccosine, inverse cosine
the inverse function of the cosine; the angle that has a cosine equal to a given number
tan, tangent
ratio of the opposite to the adjacent side of a right-angled triangle
arc tangent, arctan, arctangent, inverse tangent
the inverse function of the tangent; the angle that has a tangent equal to a given number
cotan, cotangent
ratio of the adjacent to the opposite side of a right-angled triangle
arc cotangent, arccotangent, inverse cotangent
the inverse function of the cotangent; the angle that has a cotangent equal to a given number
sec, secant
ratio of the hypotenuse to the adjacent side of a right-angled triangle
arc secant, arcsec, arcsecant, inverse secant
the inverse function of the secant; the angle that has a secant equal to a given number
cosec, cosecant
ratio of the hypotenuse to the opposite side of a right-angled triangle
arc cosecant, arccosecant, inverse cosecant
the angle that has a cosecant equal to a given number
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mathematical relation
a relation between mathematical expressions (such as equality or inequality)

v make a map of; show or establish the features of details of

map the surface of Venus”
make a chart of
plat, plot
make a plat of
Type of:
interpret, represent
create an image or likeness of

v depict as if on a map

“sorrow was mapped on the mother's face”
Type of:
depict, picture, render, show
show in, or as in, a picture

v explore or survey for the purpose of making a map

“We haven't even begun to map the many galaxies that we know exist”
Type of:
travel to or penetrate into

v plan, delineate, or arrange in detail

map one's future”
map out
Type of:
contrive, design, plan, project
make or work out a plan for; devise

v to establish a mapping (of mathematical elements or sets)

Type of:
commute, permute, transpose
change the order or arrangement of

v locate within a specific region of a chromosome in relation to known DNA or gene sequences

map the genes”
Type of:
locate, situate
determine or indicate the place, site, or limits of, as if by an instrument or by a survey

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