n 1 : a usu. abnormal fissure or opening esp. when resulting from failure of parts to fuse during embryonic development 2 : a usu. V-shaped indented formation : a hollow between ridges or protuberances <the anal of the human body> 3 : the hollow space between the two branches of the frog or the frog and bars or between the bulbs of the heel of a horse's hoof 4 : a crack on the bend of the pastern of a horse 5 : a division of the cleft foot of an animal 6 : SYNAPTIC CLEFT .
Similar sounding terms: cla·vate claw foot
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