in·ter·ses·sion 
(ĭntər-sĕsh′ən)
(ĭntər-sĕsh′ən)n.
The time between two academic sessions or semesters.
in′ter·session·al adj.
- waterman
- watermark
- watermelon
- water milfoil
- water mill
- water moccasin
- water mold
- water nymph
- water oak
- water of crystallization
- water of hydration
- water on the brain
- water ouzel
- water park
- water parting
- water pepper
- water pill
- water pipe
- water pistol
- water plantain
- water polo
- waterpower
- waterproof
- water purslane
- water rat