Obs. [Formation obscure: cf. CAUTER and CULTELER.] A knife-shaped instrument for cautery.

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1541.  R. Copland, Guydon’s Quest. Chirurg. (1579), 49. They be applyed to the lachrymalls to consume the superfluous flesh, and [it] is done with a small actuall cautelayre. Lykewise to the temples with a cautelayre to close the veynes.

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