(slang) An aircraft with an unacceptably high accident rate.

A colugo, having membranes between the front and hind legs similar to those of flying squirrels.

vicious

Any early guided missile, but especially the V-1.

(architecture) A buttress that stands apart from the structure that it supports, and is connected to it by an arch (flyer).

(rail transport) The carefully-timed situation in which two opposing trains on a nominally single-track line meet at a siding and are able to pass each other without stopping, because they have reached the siding simultaneously.

(music) A wooden electric guitar with a futuristic shape.

(idiomatic) A very short visit.

plural of flying buttress

(aviation, colloquial) An aircraft which is too heavy and lacks sufficient power to be maneuvered easily.