Medical Dictionary


noun fos·sa \ˈfäs-ə\
plural fos·sae \-ˌē, -ˌī\

Medical Definition of FOSSA

:  an anatomical pit, groove, or depression <the temporal fossa of the skull> <the fossa in the liver for the gallbladder>
fos·sate \-ˌāt\ adjective
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