| Calkins' sign | <clinical sign> The change of shape of the uterus from discoid to ovoid, indicating placental separation from the uterine wall. (05 Mar 2000) |
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| Calkins, Leroy Adelbert | <person> U.S. Obstetrician-gynecologist, 1894-1960. See: Calkins' sign. (05 Mar 2000) |