hy·po·lith·ic 
(hī′pə-lĭthĭk)
(hī′pə-lĭthĭk)adj.
Being or inhabiting a largely lightless environment found beneath or on the lower surface of rocks: hypolithic algae.
- transculturation
- transcurrent
- transcutaneous
- transdermal
- transdermal patch
- transduce
- transducer
- transductant
- transduction
- transductional
- transect
- transection
- transept
- transeptal
- transeunt
- trans fat
- trans fatty acid
- transfect
- transfection
- transfer
- transferability
- transferable
- transferal
- transferase
- transferee