â¢ SECRETION (noun). The noun SECRETION has 2 senses: 1. the organic process of synthesizing and releasing some substance. 2. a functionally specialized substance (especially one that is not a waste) released from a gland or cell. Familiarity information: SECRETION used as a noun is rare.Dictionary entry details.eaning: A functionally specialized substance (especially one that is not a waste) released from a gland or cell. Classified under: Nouns denoting body parts. Hypernyms (secretion is a kind of...): bodily fluid; body fluid; humor; humour; liquid body substance (the liquid parts of the body).
Confidence votes 30. It depends on the type of shark, most sharks like living in warm or tropical waters,such as Hawaii and Australia.Some sharks though can live in colder waters,such as the Greenland shark and the Great White shark.The Great White Shark has even been seen in the cold waters of Sanfransisco.
An example of such a shark is the bull shark which is notorious for wandering into freshwater and has been found over 4200 kilometers / 2,600 miles upstream in rivers such as the Amazon. Bull sharks also live in Lake Nicaragua and these sharks are often referred to as true freshwater sharks. Recent studies do however show that even if bull sharks can live for many years in Lake Nicaragua, they do not breed there and they need to return to the ocean to breed.