Hypertext Webster Gateway: "Castrel"
From Webster's Revised Unabridged Dictionary (1913) (web1913)
Castrel \Cas"trel\, n. [Cf. F. cr['e]cerelle, cristel, OF.
crecel, cercele. Cf. {Kestrel}.] (Zo["o]l.)
See {Kestrel}.
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