A cylindrical coelenterate, such as the hydra, having a mouth surrounded with tentacles. The sessile life stage of many cnidarians, whose free-swimming stage, if present, is the .
Water that has from the ground surface to an aquifer.
The act or result of contorting; the state of being contorted: the twisting of , especially oneself.
The amount or of something that is wasted or lost by deterioration or other natural process.
A instrument used for listening to sounds produced within the body.
The act or process of two or more parts into a single unit.
A form of taxation on the land of peasants in pre-Revolutionary France.
A large marine fish with a long, bill, Xiphias gladius.