septum noun [C]. âº a âthin âpart âdividing âtissues or âspaces in an âorgan such as the ânose or âheart: the ânasal septum. (Definition of septum from the Cambridge Advanced Learnerâs Dictionary & Thesaurus Â© Cambridge University Press). Browse. 1  septic.
Unfortunately, the giant squid Architeuthis has not been studied enough to make a comprehensive diet. From the few that have been dissected though, it was discovered that they would eat sperm whales that dive deep underwater.
Cephalopods, in turn, are eaten primarily by mammals, especially by the sperm whale (which occasionally eats even giant squid), and also by marine birds. Many cephalopods, such as squid, cuttlefish, and octopus, are eaten by man and are an item of commerce.