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.
The squid's eight long tentacles have strong suction cups, which they use to hold on to their prey. A sharp, powerful beak finishes off their helpless victim with eerie efficiency. They are thought to feed on deep sea fish and other species of squid.