cryp·to·si·pho·nia \ˌkriptōˌsīˈfōnēə\noun Usage: capitalized Etymology: New Latin, from crypt- + siphon- + -ia : a genus of marine Pacific red algae (order Cryptonemiales) including one that is common on the coast and has a compressed tubular thallus with few branches and many short branchlets disposed along them