head·spring 
(hĕdsprĭng′)
(hĕdsprĭng′)n.
A fountainhead; a source.
- telephotography
- teleplay
- teleport
- teleportation
- teleprinter
- teleprocessing
- TelePrompTer
- telescope
- telescopic
- telescopically
- telescopist
- Telescopium
- telescopy
- teleshop
- teleshopper
- telestereoscope
- telesthesia
- telesthetic
- teletext
- teletheater
- telethermoscope
- telethon
- Teletype
- teletypewriter
- teleutospore