¹ Source: wiktionary.com
Medical Definition of Cardinal points
1. The four point's in the pelvic inlet toward one of which the occiput of the baby is usually directed in case of head presentation: two sacroiliac articulations and the two iliopectineal eminences corresponding to the acetabula, six point's of a compound optical system: the anterior focal point, the posterior focal point, the two principal point's, and the two nodal point's. (05 Mar 2000)
Lexicographical Neighbors of Cardinal Points
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