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From metric measurements for words that start with K we use the prefix kilo. There are thermometers that use the Kelvin scale to read temperatures compared to a hypothetical absolute zero.

I was surprised to find how many mathematical words begin with the letter K. Even the nautical term knot is in this short list.

Kelvin - a scale used on some thermometers to measure temperature.

Kilo - means “a thousand of.”

Kilobyte - 1000 bytes a unit of measurement for data on computers. Kilo means a thousand of.

Kilogram - 1000 grams. It is the weight of a special platinum rod in Paris that is used as the standard unit of measure for the metric system. A kilogram is about 2.2 pounds.

Kilometer - 1000 meters (a unit to measure length in the metric system). A kilometer is about 3280 feet. Kilo means “a thousand of.”

Kilowatt - 1000 watts and is a unit of measure for electrical power. Kilo means “a thousand of.”

Kinematics - a branch of mechanics dealing with the motion of rigid bodies without reference to their masses or the forces acting on the bodies.

Kite - a quadrilateral that has two sets of adjacent sides that are the same length and one set of opposites angles that are congruent.

Klein Bottle - a special bottle that only has one side. Most bottles have an inside and an outside. In a Klein bottle, the “inside” and the “outside” are the same side!

Knight’s Tour - a knight’s tour of a chessboard is a sequence of moves by a knight such that each square of the board is visited exactly once.

Knot - a curve in space formed by interlacing a piece of string and then joining the ends together; a unit of speed in navigation equal to one nautical mile per hour.

## Printable Math Dictionary

I print and keep these Math definitions as a glossary in my binder: Free Printable Math Dictionary For Kids

See the alphabetical links below for more online Math words.

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