Semicircle
noun
Half of a circle. Imagine a full circle that is cut exactly in the middle, forming two equal parts. Each part is called a semicircle.
He drew a semicircle on the whiteboard.

Often appears as...
- draw a semicircle
- semicircle shape
noun
A two dimensional geometric shape that forms the space inside a semicircle line.
The area of a semicircle can be calculated using the formula (1/2)πr², where r is the radius.

Often appears as...
- area of semicircle
- semicircle calculation
Usage tips
Academic
noun
A seating arrangement where chairs or benches are placed in the shape of a semicircle.
The theatre had a semicircle seating arrangement, which helped everyone get a clear view of the stage.

Often appears as...
- semicircle seating
- semicircle arrangement
noun
Half of a circle. Imagine a full circle that is cut exactly in the middle, forming two equal parts. Each part is called a semicircle.
He drew a semicircle on the whiteboard.

Often appears as...
- draw a semicircle
- semicircle shape
noun
A two dimensional geometric shape that forms the space inside a semicircle line.
The area of a semicircle can be calculated using the formula (1/2)πr², where r is the radius.

Often appears as...
- area of semicircle
- semicircle calculation
Usage tips
Academic
noun
A seating arrangement where chairs or benches are placed in the shape of a semicircle.
The theatre had a semicircle seating arrangement, which helped everyone get a clear view of the stage.

Often appears as...
- semicircle seating
- semicircle arrangement
Definition 1 of 3

Visual Imagery
Picture a semicircle as a pizza slice; it helps visualize its shape.

The road curved in a perfect semicircle like a slice of my favorite pizza.
Descriptive Use
Use 'semicircle' to describe objects or formations that approximate a half-circle.

The dancers stood in a loose semicircle to welcome the audience.
Not Always Perfect
A semicircle may refer to something not exactly half a circle, but close in shape.

The children arranged their seats in a rough semicircle around the campfire.
Visual Imagery
Picture a semicircle as a pizza slice; it helps visualize its shape.

The road curved in a perfect semicircle like a slice of my favorite pizza.
Descriptive Use
Use 'semicircle' to describe objects or formations that approximate a half-circle.

The dancers stood in a loose semicircle to welcome the audience.
Not Always Perfect
A semicircle may refer to something not exactly half a circle, but close in shape.

The children arranged their seats in a rough semicircle around the campfire.
Visual Imagery
Picture a semicircle as a pizza slice; it helps visualize its shape.

The road curved in a perfect semicircle like a slice of my favorite pizza.
Descriptive Use
Use 'semicircle' to describe objects or formations that approximate a half-circle.

The dancers stood in a loose semicircle to welcome the audience.
Not Always Perfect
A semicircle may refer to something not exactly half a circle, but close in shape.

The children arranged their seats in a rough semicircle around the campfire.
Video examples
Lucy in the Sky with...
the images showed mexico's yucatan peninsula and adriana noticed this huge semicircle about a hundred miles across embedded in the landscape and it turns out that afterwards i went to talk to him and say well what do you think that is and they didn't have any idea what it was and i said well have you ever
Video examples
ET is (probably) out...
semicircle looking up at me with big eyes and I started there was a whiteboard behind me and I started off by writing a one with 22 zeros after it and I said I'd now look the number of stars in the visible universe and this number is so big there's not even a name for it okay and one of these kids shot
Video examples
Why our IQ levels are...
on a much more sophisticated level. If you said, we've got two squares followed by a triangle, what follows two circles? They could say a semicircle. Just as a triangle is half of a square,
Video examples
Lucy in the Sky with...
the images showed mexico's yucatan peninsula and adriana noticed this huge semicircle about a hundred miles across embedded in the landscape and it turns out that afterwards i went to talk to him and say well what do you think that is and they didn't have any idea what it was and i said well have you ever
Video examples
ET is (probably) out...
semicircle looking up at me with big eyes and I started there was a whiteboard behind me and I started off by writing a one with 22 zeros after it and I said I'd now look the number of stars in the visible universe and this number is so big there's not even a name for it okay and one of these kids shot
Video examples
Why our IQ levels are...
on a much more sophisticated level. If you said, we've got two squares followed by a triangle, what follows two circles? They could say a semicircle. Just as a triangle is half of a square,
Example 1 of 3
Quote examples
Chris Farley
American Comedian
I remember one time when all the nuns in my Catholic grade school got around in a semicircle, me and Mom in the middle, and they said, 'Mrs. Farley, the children at school are laughing at Christopher, not with him.' I thought, 'Who cares? As long as they're laughing.

Quote examples
Chris Farley
American Comedian
I remember one time when all the nuns in my Catholic grade school got around in a semicircle, me and Mom in the middle, and they said, 'Mrs. Farley, the children at school are laughing at Christopher, not with him.' I thought, 'Who cares? As long as they're laughing.

Example 1 of 1
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