Coolant

A coolant is a fluid which flows through a device to prevent its overheating, transferring the heat produced by the device to other devices that use or dissipate it. An ideal coolant has high thermal capacity, low viscosity, is low-cost, non-toxic, and chemically inert, neither causing nor promoting corrosion of the cooling system, however some coolants can be quite toxic if inhaled.

When the Daedalus was affected by a Wraith computer virus, Dr. Lindstrom and McKay were exposed to coolant by the entity as a means to distract them from discovering it. Dr Lindstrom got a bigger dose and vomitted from exposure.