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circumscribe [circumscribed, circumscribing, circumscribes]▼(to draw a circle, sphere, or higher-dimensional ball)
verb
[UK: ˈsɜːk.əm.skraɪb] [US: ˌsərk.əm.ˈskraɪb]

describe [described, describing, describes]▼(to give rise to a geometrical structure)
verb
[UK: dɪ.ˈskraɪb] [US: də.ˈskraɪb]

outline [outlined, outlining, outlines]▼(to draw an outline of something)
verb
[UK: ˈaʊt.laɪn] [US: ˈaʊˌt.laɪn]