am·phi·coe·lous
variants:
or less commonly amphicelous
or amphycoelous \
-¦sēləs
\
Definition of amphicoelous
: biconcave
—used of vertebrae (as those of certain reptiles) having both the anterior and posterior surfaces of the centrum concave
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“Amphicoelous.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/amphicoelous. Accessed 25 Feb. 2021.
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Time Traveler for amphicoelous
The first known use of amphicoelous was in 1866
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