hand·spring 
(hăndsprĭng′)
(hăndsprĭng′)n.
A gymnastic feat in which the body is flipped completely forward or backward from an upright position, landing first on the hands and then on the feet.
- thermion
- thermionic
- thermionic current
- thermionics
- thermionic tube
- thermistor
- thermite
- thermo-
- thermoacoustic
- thermocautery
- thermochemical
- thermochemist
- thermochemistry
- thermocline
- thermocoagulation
- thermocouple
- thermoduric
- thermodynamic
- thermodynamically
- thermodynamics
- thermoelectric
- thermoelectrical
- crosstie
- cross-tolerance
- crosstown