pho·co·me·li·a 
(fō′kō-mēlē-ə, -mēlyə)
(fō′kō-mēlē-ə, -mēlyə)n.
A birth defect in which the upper portion of a limb is absent or poorly developed, so that the hand or foot attaches to the body by a short, flipperlike stump.
[New Latin phōcomelia : Greek phōkē, seal + Greek melos, limb.]