(aviation) An aerobatic flying maneuver in which the pilot causes the airplane to complete one loop in the same time that the airplane completes one roll, creating the appearance that the airplane is riding on the inside of a cylinder.

A cylindrical push-and-twist connector for thin coaxial cable.

An internally threaded screw having a slotted head.

A clasp or clip for gathering and holding the hair. / (entomology) Synonym of katepimeron.

(transitive) To put (hair) into a barrette.

plural of barrel nut

The property of being barren; the property of not supporting life.

(architecture) A roof having a semicircular cross section; used to span large distances in railway stations etc

A musical instrument in which air from a bellows is admitted to a set of pipes by means of pins inserted into a revolving barrel (typically turned by a crank), originating in France.

A large, somewhat misshapen chest; sometimes associated with emphysema