Math Dictionary
( A - C ) ( D - F ) ( G - K ) ( L - P ) ( Q - T ) ( U- Z )

U
unbend - to remove the curves,bend,or to straighten.
unbought - not acquired by purchase.
undefined term - a term used without specific mathematical definition;in geometry,point,line and plane
are undefined terms.
unearned - not earned by labor or service.
unequal - not the same in amount, size ,number,value,merit ,degree or ran.
unequal angles - are angle of different measures or sizes soits not congruent.
unmeasured - unlimited;measureless.
unmerchantable - unfit for sale.
union - of two sets,the set of elements which are in at least one of the sets.
unit of circle - a circle of radius 1 whose center is the origin of the coordinate axes.
unit of area - is a square of edge 1 unit .
unit of price - the cost per unit of an item.
uniqueness at most one ;with " existence " uniqiueness proves exactly one.
unpriced - not having a price;priceless.
unprofitably - without profit or gain.
unquantifiable - that is not measurable or easily calculable.
unvalued - not measurable or easily calculable.
unvalued - not appraised;cannot be valued.
upset price - the lowest price at which a thing offered for sale.
userer - a person who lends money at an extremely high or unlawful rate of interest.
usurp - to seize and hold power,position or authority by force or without right.
usury - the lending of money at an extremely high or unlawful rate of interest.

V
validity - legal soudness or force.
value - of a variable,the number assigned or substituted for a variable.
variable - a letter or symbol used to represent a number.
vector - line such an arrow representing both the direction as well as magnitude of the force
velocimeter - anyone of various devices for measuring velocity or speed.
vend - to sell; to find a market purchaser.
vendee - the person to whom a thing is sold.
vender - a seller, especially a peddler or person who sells on the street.
vendible - marketable ;salable.
vendue - a public sale or auction
venn diagram - a diagram using circles and rectangles, to represent various types of mathematical sets,
and to show the relationship between them.
vernier - a small movable scale for measuring a fractional part,of one of the division of the fixed scale,
of astrnomical surveying or other mathematical instrument to which it attached.
vertex - the highest point of something especially a hill or structure.
Vertex:
. of an angle - the common endpoint of two rays that form the angle.
. of a parabola - the point where the parabola has its maximum or minimum point.
. of a polygon - the endpoint of any two sides.
. of a pyramid - the point of intersection of th lateral faces.
vertex angle - in an isosceles triangle,the angle formed by the two congruent legs,the angle opposite the base.
vertical angels - the non adjacent formed by the intersection of two lines.
vertical - straight up and down;perpindicular to a level surfaces or to the plane of the horizon.
vertical axis -the y-axis of the coordinate plane.
vertical circle - a great circle of e celestial sphere perpendicular to the plane of the horizon passing through the zenith and nadir.
vertical line - it is a line perpindicualr to the horizon
vertical merger - a merger of companies that are each other's supplier or customers,as distinguished from
a horizontal merger.
vertimeter - an instrument that measures the rate of climb or descent of an aircraft .
vested right - a right to pension benefit ,even if an employee leaves the company before the retirement age
volume - the number of cubic units contained in a solid.A space occupied as measured in three dimension.
voluntary - anything done, made,given or entered into, of one's own free will.
volute - a spiral or twisted things or form.
vortex - swirling mass of water that sucks in everything near it.
voucher - written evidence of payment.
voucher plan or system - a system for alloting tax revenues in the form of redeemmable certificates which a
parent can apply as tuition in aprivate school.

W
wage - payment for labor or services
wage earner - person who works for wages.
wage freeze - a fixing of wages and salaries as by government decree
wage hike - an increase in wages; raise.
wageless - that does not earn or received wages.
wage price - having to do with the relation of wages to prices.
wage rate - the rate of pay assigned to a worker for a certain job or time spent in working
wage worker - a person who works for wages
wane - to lose size ;
waning - becoming smaller gradually after the full moon
watt - the metric unit of power equal to the work done at the rate of one joule per second
waybill - list of goods with a statement of where they are to go, and how they are o get there.
ways and means - ways of raising revenue for current governmental expenditures
way point - a stopping place on aroute or during a journey.
weak minded - having or showing little intelligence.
weak - that can easily be broken.
wealth - many valuable possessions;mush money.
wear and tear - loss or damage caused by use.
weigh - to find out how heavy a thing is
weight - a unit ( as a pound or kilogram) of weight or mass
weight density - the weight of a substance per unit volume.
weightless - having little or no weight.
weighty - heavy;having much weight
welfare fund - a fund to provide benefits for workers,set up by a union from its own dues.
welter weight - aboxer who weigh more than 135 and less 147 pounds.
west - the direction of the sunset.
west by north - the point of the compass or the direction,one point or 11 degrees 15 minutes to the north
of west.
west by south - the point of the compass or the direction one point or 11 degrees 15 minutes to the south of west.
whole - not fractional;integral.
whole number - the counting or natural numbers from 0 to positive infinity
whole sale - the sale of goods in large quantities at a time.
width - of a rectangle ,dimensional of a rectangular solid,taken at right angles to the length.
withdrawals - the act of withdrawing
working capital - the amount necessary to run the business.
writing time - the colon(:) is used to indicate the different units of time when using a clock.

X
x - the roman numeral for 10.
x-axis - the horizontal axis in asystem of rectangular coordinates,as on a chart or graph.
x- coordinate - the first number in an ordered pair of number
x - intercept - the x - coordinate of the point at which a function crosses the x- axis.

Y
y- axis - the vertical line in the coordiante plane or in space
y- coordinate - the second number in an ordered pair of numbers
y - intercept - the y - coordinate of the point at which a function crosses the y-axis.
year - 12 months or 365 days;January 1 to December 31; leap year has 366 days.
year end - the stock dividend given at the end of the year.
year long - lasting for a year.
yearly - once a year.
yearling - an animal one year old.
year round - throughout the year.
year to year -occuring or done from year to year

Z
z- the 26 and last letter of alphabet
zenith - the point in the heavens directly overhead.
zero - the number represented by the number 0
zero hour - the time at which an event is scheduled to begin
zero point - the intersection of the x- axis and the y-axis.
zero population growth - the condition in which population ceases to grow, and a balanced is
reached in the average number of birth and deaths.
zero-zero - severely limited visibility in horizontal and vertical direction.
zigzag - having a series of short,sharp turns from one side to another.
zillion - any very large indefinite number