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Webster 1913 Edition

Adj.

[

Platy

+ Gr. [GREEK] hollow.]

(Anat.)

Flat at the anterior and concave at the posterior end; – said of the centra of the vertebræ of some extinct dinouaurs.

platycoelian ‎(comparative more platycoelian, superlative most platycoelian)

(anatomy) Flat at the anterior and concave at the posterior end; said of the centra of the vertebrae of some dinosaurs.