Palfyn's sinus

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• sinus — 1. [TA] A channel for the passage of blood or lymph, without the coats of an ordinary vessel; e.g., blood passages in the gravid uterus or those in the cerebral meninges. 2. [TA] A cavity or …   Medical dictionary

• Palfyn, Palfin — Jean, Belgian surgeon and anatomist, 1650–1730. See P. sinus …   Medical dictionary