Onkian

An onkian is a temperature unit used within the Romulan Empire.

Twelve onkians are equivalent to a temperature on the cold side of the Celsius metric system. Admiral Alidar Jarok, after requesting political asylum on the USS Enterprise (NCC-1701-D), ordered water with a temperature of twelve onkians from the replicator in his guest quarters; the units were not recognized by the computer. 

Onkian Onkian