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amphicelous

or am·phi·coe·lous

[am-fuh-see-luh s]
adjective Anatomy, Zoology.
  1. concave on both sides, as the bodies of the vertebrae of fishes.
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Origin of amphicelous

First recorded in 1865–70, amphicelous is from the Greek word amphíkoilos hollow at both ends. See amphi-, -cele2, -ous
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018