A carousel; a pleasure ride, typically found at fairs and amusement parks, consisting of a slowly revolving circular platform on which various seats are fixed, frequently shaped like horses or other animals.

The same but with the mentioned things or people in reverse order or position. / In reversed orientation.

(chemistry) A glass flask used in a laboratory for holding chemical liquids and solutions, which has a spherical shape for uniform heating, and one or more long cylindrical necks.

(telecommunications) The time elapsed for a message to a remote place and back again.

alternative form of run rings around

(idiomatic) To repeatedly do the same thing without making any progress.

plural of round-bottomed flask

alternative form of run circles around

(Britain) general education

A type of collaborative fiction or storytelling in which a number of authors each write chapters of a novel or pieces of a story, in rounds.