ˌsemi-palˈmationn. the condition of being semi-palmate.
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the world > animals > animal body > general parts > body and limbs > [noun] > paw or foot > web-foot > animal with webbed-feet > animal having digits whole or partly united > being half-webbed
semi-palmation1872
1872 E. CouesKey to N. Amer. Birds 51 They [webs] run out to the end of the first, or along part of the second joint, constituting true semipalmation.