(aviation) A zone of indeterminism over a navigation beacon (such as a VOR), where the direction-finding ability of the receiver outputs a random direction as flying over the beacon results in no direction to the beacon, giving a spinning direction indicator display. Also refers to flying over a magnetic pole, and its effects on a magnetic compass.

A member of the genus Conus.

plural of cone shell

Having the shape of or resembling the shape of a cone.

A cone of canvas stretched on an elevated frame as a storm signal.

The conical structure around the mouth of copepods that houses the mandibles

Alternative form of pinecone

The conical fruit of a spruce tree.

An attractive cone shell (Conus textilis) in which the colours are arranged so that they resemble certain kinds of cloth.

Any of the predatory sea snails of the family Conidae, all the species of which are sometimes treated as is being in genus Conus or subfamily Coninae.