Toilet
The toilet, also referred to by the Ferengi as a waste extraction fixture, was a device used for the disposal of bodily wastes. The waste extraction system was the system used to manage and process that and all other related wastes.

Sometime during the 16th and 22nd centuries, the Bajorans invented a zero gravity toilet for their Bajoran lightships. ()

During the first mission of the starship  in April 2151, Captain Jonathan Archer declared that the Vulcan High Command didn't think Humans could  a toilet without a Vulcan to assist. () 

In 2151, Worley Elementary School in Kenmare, County Kerry, Ireland on Earth, sent questions, letters, and drawings to Enterprise. One question asked was "When you flush the toilet, where does it go?" and one of the few that was answered personally – Captain Archer delegated it to chief engineer . Commander Tucker was not pleased with the captain's selection of questions for him and protested, but ultimately relented and explained to Molly the ship's processes of recycling and biomatter resequencing. ()

In 2152, T'Pol questioned Humans' emotional attachment to "primitive quadrupeds  who haven't developed the ability to speak or to use a toilet", namely, dogs such as Porthos. ()

The decon chamber on  had its own toilet, housed in a separate chamber within the decontamination area. In 2154, Hoshi Sato vomited in this toilet while dying of the Silicon-based virus. ()

The brig aboard Starfleet ships included facilities such as a sink and toilet, which were enclosed behind the wall until needed. A sign above the toilet read "do not use while in spacedock."  ()

In the year 2365, when the  first encountered the Borg, the section of the Enterprise cut away from the ship included a toilet. ()

Waste extraction points on a Bajoran transport were located in individual quarters. After Ibudan was murdered in 2369, Dr. Julian Bashir located seofurane fragments near the waste extraction point in Ibudan's quarters on the transport. ()

The Ferengi shuttle, Quark's Treasure was equipped with a waste extraction unit. () 

It was said that the waste extraction fixtures at the Nagal Residence on Ferenginar were plated with latinum. Quark, believing that he was about to become the next Grand Nagus, said that the first thing he was going to rip out the plated fixtures and replace them with solid latinum fixtures. ()

His upcoming wedding with Leeta and preparations for a Dominion attack on Deep Space 9 in late 2373 made Rom so nervous that he announced he had to go to waste extraction. ()

A latrine was an improvised toilet. In 2152, while riding out a neutronic storm, Travis Mayweather asked  what they would do for a latrine. Tucker suggested converting some of the storage lockers in the aft compartment. () 

In 2154, Hoshi Sato reported that a latrine was among the remnants of a Klingon garbage dump. ()

Appendices

See also 
 Sand box
 Toilet facility

Apocrypha
The Star Trek: Legacies novel Best Defense reveals that Starfleet away teams had portable commodes they could use while planetside. Montgomery Scott rigs up one of them to stun the woman who has demanded the device, among other things, while holding Joanna McCoy hostage. Spock ruefully observes that the move was lacking dignity. It was ultimately unnecessary.

External links 
 
 

de:Müllbeseitigung
Life support technology