fos·su·la
| \ ˈfäs-(y)ə-lə also ˈfȯs-
\
\
plural fossulae\
-lē also -ˌlī
\
\
Medical Definition of fossula
: a small or shallow fossa
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“Fossula.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/fossula. Accessed 17 Sep. 2021.
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