Advertisement.

EnchantedLearning.com is a user-supported site.
As a bonus, site members have access to a banner-ad-free version of the site, with print-friendly pages.
Click here to learn more.

ad
(Already a member? Click here.)


You might also like:
Z: Illustrated Math Dictionary - Enchanted Learning.comU: Illustrated Math Dictionary - Enchanted Learning.comQ: Illustrated Math Dictionary - Enchanted Learning.comE: Illustrated Math Dictionary - Enchanted Learning.comK: Illustrated Math Dictionary - Enchanted Learning.comToday's featured page: Tsunami Activities



Our subscribers' grade-level estimate for this page: 3rd - 4th

+, -
EnchantedLearning.com
Math Dictionary
x, ÷
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
n in Morse Code 
N is for ...
n in Braille

nano

Nano is a prefix meaning one billionth (1 x 10-9). A nanometer is a unit of measure equal to one billionth (1 x 10-9) of a meter. A nanosecond is a unit of measure equal to one billionth (1 x 10-9) of a second.

nanometer

A nanometer is a unit of measure equal to 10 angstroms, which is one billionth (1 x 10-9) of a meter.


natural number

The natural numbers (also called counting numbers) are the positive whole numbers, 1, 2, 3, 4, 5... . Mathematicians usually include the number zero with the natural numbers.


negative number

A negative number is a a number less than zero, like -1, -2, -3/4, etc.


net

The net of a polyhedron is an unfolded polyhedron, a series of connected polygons. The picture above is the net of a cube.


Newton, Isaac

Isaac Newton (1642-1727) was an English mathematician and physicist who invented calculus (simultaneously with, but independently of Leibniz), formulated the laws of gravitation, investigated the nature of light (he discovered that sunlight is made of light of different colors), and the laws of motion: 1. An object in uniform motion tends to remain in that state of motion unless an external force is applied to it (the Law of Inertia). 2. A force causes a change in the velocity (acceleration) of an object (F=ma). 3. For every action there is an equal and opposite reaction. Newton also improved the design of the telescope (using an objective mirror instead of a lens), and it is now called a Newtonian telescope.


nine

Nine is the number between eight and ten. There are nine players on a baseball team. A nine-sided figure is called a nonagon.
19

nineteen

Nineteen is the number between eighteen and twenty. A nineteen-sided polygon is called an enneadecagon.
nonagon

nonagon

A nonagon is a nine-sided polygon.


normal

In mathematics, a normal line is perpendicular (at right angles) to the tangent of a curve.
{ }

null set
The null set is the empty set, a set with no members.


number

Numbers tell you "how many" or "how much." Some numbers are -12, 0, 5, 1/2, 1.33333, π, 1600.


number line

A number line is a line in which real numbers can be placed, according to their value. Each point on a number line corresponds to a real number, and each real number has a unique point that corresponds to it. For example, the number 1.5 (1 1/2) corresponds to the point on a number line that is halfway between one and two.


numeral

A numeral is a symbol for a number. For example, the symbol 2 is the numeral we use to represent the number two. In our base ten numbers, there are 10 numerals: 0, 1, 2, 3, 4, 5, 6, 7, 8, and 9.


numerator

The numerator is the top number in a fraction.
1, 2, 3, 4, 5

numerical order

When numbers are in numerical order, they are in order from lowest to highest.

+, -
EnchantedLearning.com
Math Dictionary
x, ÷
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Counting Addition Subtraction Multiplication Division
Number Line Fractions Decimals Graphs Measurement Rounding

Click on an underlined word for more information on that subject. If the math term you are looking for is not in the dictionary, please e-mail us.


Enchanted Learning®
Over 35,000 Web Pages
Sample Pages for Prospective Subscribers, or click below

Overview of Site
What's New
Enchanted Learning Home
Monthly Activity Calendar
Books to Print
Site Index

K-3
Crafts
K-3 Themes
Little Explorers
Picture dictionary
PreK/K Activities
Rebus Rhymes
Stories
Writing
Cloze Activities
Essay Topics
Newspaper
Writing Activities
Parts of Speech

Fiction
The Test of Time
iPhone app
TapQuiz Maps - free iPhone Geography Game

Biology
Animal Printouts
Biology Label Printouts
Biomes
Birds
Butterflies
Dinosaurs
Food Chain
Human Anatomy
Mammals
Plants
Rainforests
Sharks
Whales
Physical Sciences: K-12
Astronomy
The Earth
Geology
Hurricanes
Landforms
Oceans
Tsunami
Volcano
Languages
Dutch
French
German
Italian
Japanese (Romaji)
Portuguese
Spanish
Swedish
Geography/History
Explorers
Flags
Geography
Inventors
US History

Other Topics
Art and Artists
Calendars
College Finder
Crafts
Graphic Organizers
Label Me! Printouts
Math
Music
Word Wheels

Click to read our Privacy Policy

E-mail


Enchanted Learning Search

Search the Enchanted Learning website for:



Advertisement.



Advertisement.



Advertisement.


Copyright ©2004-2016 EnchantedLearning.com ------ How to cite a web page