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.
Sperm whales (Physeter catodon) are known to be the major predator of giant squid. Whales stranded on beaches and caught by whaling ships bear circular scars inflicted by the powerful suckers of giant squid. Scientists have used the size of the scars to estimate the size of the squid eaten by the whales. Scars as large as 7.8 inches (20 cm) have been reported and some people believe that it would take a 246-foot (75 m) squid to bear such a sucker! Do not believe it!