Hypertext Webster Gateway: "cardo"
From Webster's Revised Unabridged Dictionary (1913) (web1913)
Cardo \Car"do\ (k[aum]r"d[-o]), n.; pl. {Cardines}.) [L., a
hinge.] (Zo["o]l.)
(a) The basal joint of the maxilla in insects.
(b) The hinge of a bivalve shell.
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