Webster's Revised Unabridged Dictionary · 1913

Cestraciont

Cestraciont , noun

[Greek {not transcribed} a kind of fish.]

(Zoology) A shark of the genus Cestracion, and of related genera. The posterior teeth form a pavement of bony plates for crushing shellfish. Most of the species are extinct. The Port Jackson shark and a similar one found in California are living examples.

Cestraciont , adjective

(Zoology) Pertaining to, or characteristic of, the genus Cestracion.