Englishfor English speakers
arcus
—
noun
a whitish deposit in the shape of an arc that is sometimes seen in the cornea
sinus
—
noun
any of various air-filled cavities especially in the bones of the skull
—
noun
(= venous sinus)
a wide channel containing blood; does not have the coating of an ordinary blood vessel
—
noun
(= fistula)
an abnormal passage leading from a suppurating cavity to the body surface