🍩 A sweet cake 📊 A ring chart

donut

10 3.7

A chart shaped like a ring with a hollow center that shows parts of a whole

noun
/ˈdoʊnʌt/

Specialized

: gráfico de anillo

The marketing team prefers to use a donut chart for data representation because it helps highlight the proportions better than a pie chart.
donut hole
donut-shaped
donut or torus

Examples

During the meeting, the presenter used a donut chart to illustrate the survey results visually.
The sales report included a donut chart that clearly displayed the budget allocations for each department.
And when we do, we see the donut hole has a hole in its center.

Knives Out (2019)
But, I spoke in the car about the hole at the center of this donut.

Knives Out (2019)
OK, so if they wanted to measure the amount of calories in a doughnut, here's what they used to do.
There were Styrofoam coffee cups on the kitchen counter, and two bright pink Dunkin' Donuts boxes on the table.

Fiction book (1998)
Through the cruiser windshield, Larry watches his partner talk up the girl behind the counter of the 24-hour donut shop.

Fiction book (1995)

Compounds

donut fryer

Specialized

3.3

A machine that fries many donuts at once in bakeries and shops

donut machine

Specialized

2.5

A machine that fries many donuts quickly for bakeries or shops

donut patrol

Slang

9.3

A joking name for a group watching something unimportant, often police on quiet shifts

Hertz donut

Informal

9.9

A joke name for a spare tire given as a prank

Surface Forms

donut singular

donuts plural

doughnuts plural

doughnut singular

Morphology

donut = doughnut (transparent) = dough + nut

The chart is named after the pastry by shape; the relation to 'doughnut' is straightforward (orthographic shortening to 'donut').

Etymology

Donut for a chart is named after the sweet because the picture is a ring with a 'hole' in the middle, just like a doughnut. That's why a donut chart shows parts of a whole in a ring shape.