ring chart

A multilevel pie chart that uses concentric circles to visualize hierarchical data.

plural of Snellen chart

A chart bearing letters or other symbols, used to test visual acuity.

plural of weather chart

(nautical) A table, below deck, on which charts are placed to navigate.

A three-dimensional chart that graphs the political spectrum, mapping cultural issues on one axis, fiscal issues on another axis, and corporate issues on a third axis, with the endpoints representing eight different ideologies.

plural of funnel chart

A bar chart with a series of decreasing bars showing the changed value at each stage of a process.

(music) A list of the most popular or best-selling pop music at a given time.