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Reverse Search
Reverse Search allows you to search within the full text of dictionary entries for words, word parts, and phrases.
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Example: Searching for "apple orange" identifies all entries that contain the word "apple" and the word "orange."
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around |
measured along the outside edge; in circumference. [1/12 definitions] |
cycloid |
in geometry, a curve traced by a point on the circumference of a circle that is rolling along a straight line. [1/3 definitions] |
diameter |
in geometry, a straight line passing through the center of a circle or sphere and having its ends on the circumference or surface. [2/3 definitions] |
epicycle |
in early astronomy, a small circle whose center moves along the circumference of a larger circle. [2 definitions] |
girth |
the length around something, esp. the waist or abdomen; circumference. [1/4 definitions] |
helix |
a three-dimensional curve with a central axis and a steadily increasing, steadily decreasing, or constant circumference; spiral. |
paddle wheel |
an engine-driven or pedal-operated wheel that has boards or paddles fixed at right angles around its circumference, used to propel a boat, esp. a river steamboat. |
pi |
a number equal to the ratio of the circumference of a circle to its diameter. The value of pi is approximately 3.1416 or 22/7. |
radian |
a unit of angular measure. One radian is defined as the angle that is formed when two radii of a circle cut a slice of the circumference that is equal in length to the radius. |
radius |
a straight line segment extending from the center to the surface of a sphere or from the center to the circumference of a circle. [1/7 definitions] |
waistline |
the narrowest part of the waist, or the circumference of this part. [1/2 definitions] |
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