don·gle 
(dôngəl, dŏng-)
(dôngəl, dŏng-)n.
A hardware device that renders inoperable certain software on a computer if the device is not attached to the computer.
[Probably arbitrary coinage.]
- thermocautery
- thermochemical
- thermochemist
- thermochemistry
- thermocline
- thermocoagulation
- thermocouple
- thermoduric
- thermodynamic
- thermodynamically
- thermodynamics
- thermoelectric
- thermoelectrical
- crosstie
- cross-tolerance
- crosstown
- cross-town
- cross-train
- cross-trainer
- cross trainer
- crosstree
- cross t's
- cross up
- cross vault
- crossvine