(medicine) An abscess with no external opening.

plural of blind abscess

A blind for a window, usually of stiffened fabric, mounted on a pole and operated with a chain or spring mechanism.

(slang) To act in a rash, reckless, or headlong manner. / (card games) To bet without having examined the cards.

Haemorrhoids that do not bleed.

Coal that burns without a flame; anthracite coal.

An axle that turns but does not communicate motion.

(military) A shell containing no charge, or one that does not explode.

(mining) A level or drainage gallery which has a vertical shaft at each end, and acts as an inverted siphon.

A boil that suppurates imperfectly, or fails to come to a head.