Cage
A cage was a type of prison or secured area where animals were held.

Doctor Phlox held several of his animals in sickbay aboard  in cages, including his Pyrithian bat. ()

A white cage was one of the items Garos kept in his curio shop on the Akaali homeworld in 2151. ()

In 2266, in response to James T. Kirk's admiration for Doctor Tristan Adams's theories about treatment of penal colony inmates, Leonard McCoy affirmed that "a cage is a cage, Jim." ()

In 2269, Christine Chapel reported that a group of gossamer mice in the 's medical lab were becoming too small for the cage mesh to prevent their escape. ()

On Betazed, women used to wear huge wigs that incorporated cages for tiny animals. These cages were kept in large holes in the middle of the wigs. This fashion was very cruel for the animals and was abolished after many years as a result of one woman's defiance. ()

In 2366, a cockatoo in a cage was part of Reginald Barclay's holographic program. ()

In 2383, Nandi kept an animal in a cage on the Damsel. ()

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Architecture
Security technology